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RESEARCH > SSSHHHH RC > Flashcards

SSSHHHH RC Flashcards

1
Q

The measurement of this descriptive statistic is very sensitive to extreme values

a) Mean
b) Median
c) Mode
d) None of the above

A

a) Mean

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2
Q

The rationale of this measure is to ensure an equal number of sample points on both
sides of the central location.

a) Mean
b) Median
c) Mode
d) All of the above

A

d) All of the above

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3
Q 
The principal strength of the sample is that it is not sensitive to very large or very
small values
a) Mean
b) Median
c) Rate
d) None of the above
A

b) Median

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4
Q

In this distribution, the points above the median will tend to be farther from the
median in absolute value than points below the median.
a) Skewed to the right distribution
b) Normal distribution
c) Skewed to the left distribution
d) None of the above

A

a) Skewed to the right distribution

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5
Q

The most frequently occurring value among all the observations in a sample

a) Frequency polygon
b) Mode
c) Standard deviation
d) None of the above

A

b) Mode

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6
Q

The value near the center of a normally distributed data points

a) Mean
b) Median
c) Mode
d) All of the above
e) None of the above

A

d) All of the above

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7
Q

To compare the variability of cholesterol measurement on a given person using
autoanalyzer method and microenzymatic method (the two methods are both
quantitative continuous variables), it is best to examine this measure.
a) Variance
b) Rate
c) Mean
d) All of the above
e) None of the above

A

a) Variance

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8
Q

Definition of mean

a) Summation of all values of sample points divided by the sample size
b) May have exactly the same sample points on both sides of the mean
c) A measure of central location
d) All of the above
e) None of the above

A

d) All of the above

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9
Q

Large data sets are best describe using this/these:

a) Measure of spread
b) Measure of central tendency
c) Tabular presentation
d) All of the above
e) None of the above

A

d) All of the above

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10
Q

For which set of data will the mean, the median, and the mode all be equal?

a) 1, 2, 5, 5, 7
b) 1, 1, 1, 2, 5
c) 1, 2, 5, 5, 8, 9
d) 1, 1, 1, 2
e) None of the above

A

c) 1, 2, 5, 5, 8, 9

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11
Q

Consider this set of data: 5, 5, 6, 7, 7. Which statement is true?

a) mean = mode
b) median = mode
c) mean = median
d) mean < median
e) None of the above

A

c) mean = median

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12
Q

What measurement of centrality can be used for a qualitative variable?

a) Mean
b) Median
c) Mode
d) None of the above

A

c) Mode

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13
Q

If the heights of a group of students are 180 cm, 173 cm, 170 cm, 185 cm and 162
cm, what is the mean height for this group?
a) 179 cm
b) 173 cm
c) 174 cm
d) 175 cm

A

c) 174 cm

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14
Q

The difference between the highest observed value and the lowest observed value

a) Standard deviation
b) Mean
c) Range
d) Median
e) None of the above

A

c) Range

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15
Q

A study was conducted a included 120,000 women who in successive years were asked to answer a question about overall health, smoking, diet, use of birth control pills, and
postmenopausal estrogen supplements. Epidemiologists followed up each interview with a review of the women’s medical records. Today, after more than a decade, the research team found that women on an extremely high-fat diet (nearly 50% of energy intake as fat) are at no more risk of breast cancer than those who adhere to an extremely lean diet (less than 29% diet). They did find a clear association between high fat diets and colon cancer, however.
15. What response variables are mentioned in the study?

a) 120,000 women
b) High fat and low fat diet
c) smoking, diet, use of birth control pills, and postmenopausal estrogen
supplements
d) breast cancer and colon cancer
e) None of the above

A

d) breast cancer and colon cancer

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16
Q

A study was conducted a included 120,000 women who in successive years were asked to answer a question about overall health, smoking, diet, use of birth control pills, and
postmenopausal estrogen supplements. Epidemiologists followed up each interview with a review of the women’s medical records. Today, after more than a decade, the research team found that women on an extremely high-fat diet (nearly 50% of energy intake as fat) are at no more risk of breast cancer than those who adhere to an extremely lean diet (less than 29% diet). They did find a clear association between high fat diets and colon cancer, however.

  1. Amount of fat in a person’s diet is:
    a) a confounding variable
    b) Dependent variable
    c) Response variable
    d) Independent variable
    e) None of the above
A

d) Independent variable

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17
Q

A study was conducted a included 120,000 women who in successive years were asked to answer a question about overall health, smoking, diet, use of birth control pills, and
postmenopausal estrogen supplements. Epidemiologists followed up each interview with a review of the women’s medical records. Today, after more than a decade, the research team found that women on an extremely high-fat diet (nearly 50% of energy intake as fat) are at no more risk of breast cancer than those who adhere to an extremely lean diet (less than 29% diet). They did find a clear association between high fat diets and colon cancer, however.

  1. The risk to breast cancer is not conclusive among women whether she is on high fat
    or extremely lean diet. This means that breast cancer is not considered as dependent
    variable in the study
    a) True
    b) False
    c) Cannot be determined
A

b) False

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18
Q

This statement is true of horizontal bar diagram
a) This is used for qualitative variables with less than 6 categories
b) The magnitude for comparison is represented as bars whose lengths are
proportionate to the values.
c) This is used of discrete quantitative variables
d) None of the above

A

b) The magnitude for comparison is represented as bars whose lengths are
proportionate to the values.

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19
Q

Which is true of the histogram

a) This is used for a qualitative variable
b) This is used for a quantitative discrete variable
c) This has the same use as the component bar
d) This is used for a quantitative continuous variable.
e) None of the above

A

d) This is used for a quantitative continuous variable.

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20
Q

The line diagram can be applied to this situation:

a) Qualitative variable
b) Time series
c) Discontinuous variable
d) All of the above
e) None of the above

A

b) Time series

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21
Q

Dot diagram

a) Correlation data for two quantitative variable
b) Discontinuous variable
c) This is used for qualitative data
d) None of the above

A

a) Correlation data for two quantitative variable

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22
Q 
What graphical presentation is best suited for distributions having a discrete basis of
classification?
a) Pie diagram
b) Component bar
c) Horizontal bar diagram
d) Vertical bar diagram
A

d) Vertical bar diagram

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23
Q

Which statement is true of a frequency polygon?

a) This is used for discontinuous data
b) This is used to determine the relationship between 2 quantitative variable
c) This is used for discrete variable
d) We are interested with measurement of area.
e) None of the above

A

d) We are interested with measurement of area.

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24
Q

What is a frequency polygon?

a) Used for qualitative data
b) Used for discontinuous data
c) Used for trend data
d) None of the above

A

d) None of the above

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25
Q

Which of the following is/are true of the principles of tabulation.
a) The tables should be simple. Two or three tables is better than one table with
many variables
b) Each row and column should be labeled properly with specific units or measures
for the data
c) The title should answer the questions what? How? Where? And when?
d) Totals should be shown
e) All of the above

A

e) All of the above

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26
Q

When a researcher is interested with the leading causes of infant mortality in Region
XI, the following graphical presentation/s is/are preferred.
a) Vertical bar diagram
b) Pie chart
c) Component bar
d) Horizontal bar diagram
e) None of the above

A

d) Horizontal bar diagram

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27
Q

For distribution of infants according to the number of illness episodes experienced
during the calendar year, this presentation is appropriate.
a) Histogram
b) Frequency polygon
c) Vertical bar diagram
d) All of the above
e) None of the above

A

c) Vertical bar diagram

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28
Q 
What presentation is/are appropriate for the distribution of children enrolled in the
feeding program according to sex?
a) Tables
b) Pie chart
c) All of the above
d) None of the above
A

c) All of the above

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29
Q

If a sample space contains a finite number of possibilities or an unending sequence
with as many elements as there are whole numbers, it is called a
a) discrete sample space
b) continuous sample space
c) Random variable
d) Sample space
e) None of the above

A

b) continuous sample space

30
Q

If a sample space contains an infinite number of possibilities equal to the number of points on a line segment, it is called a

a) discrete sample space
b) continuous sample space
c) Random variable
d) Sample space
e) None of the above

A

a) discrete sample space

31
Q 
The heights of a sample of ten people are:
67 73 70 60 67 66 68 71 70 67
Which are the correct real limits for the frequency table given below?
Frequency (a).              (b).            (c)
1 60.5 - 63.5 60 - 62 59.5 - 62.5
0 63.5 - 66.5 63 - 65 62.5 - 65.5
5 66.5 - 69.5 66 - 68 65.5 - 68.5
3 69.5 - 72.5 69 - 71 68.5 - 71.5
1 72.5 - 75.5 72 - 74 71.5 - 74.5
a) Column a
b) Column b
c) Column c
d) All of the above
e) None of the above
A

c) Column c

32
Q 
Section D first year medicine class had a standard deviation of 2.4 on anatomy first
semester grade, while Section M first year medicine class had a standard deviation of
1.2 on the same subject grade. What can be said about these two classes?
a) Section D first year medicine class is more homogenous than Section M first year
medicine class
b) Section M first year medicine class is less heterogeneous than Section D first
year medicine class
c) Section M first year medicine class did less well on the subject grade than Section
D first year medicine class
d) Section D first year medicine class performed twice as well on anatomy subject
than Section M first year medicine class
A 
b) Section M first year medicine class is less heterogeneous than Section D first
year medicine class
33
Q 
Consider the following data:
1, 7, 3, 3, 6, 4
The mean and median for this data are:
a) 4 and 3
b) 4.8 and 3 1/2
c) 4 and 3 1/3
d) 4.8 and 3
e) 4 and 3 1/2
A

e) 4 and 3 1/2

34
Q

A distribution of 6 scores has a median of 21. If the highest score increases 3 points,
the median will become ___________.
a) 21
b) 21.5
c) 24
d) Cannot be determined without additional information
e) None of the above

A

a) 21

35
Q

If you are told a population has a mean of 25 and a variance of 0, what must you
conclude?
a) Someone has made a mistake.
b) There is only one element in the population.
c) There are no elements in the population.
d) All the elements in the population are 25.
e) None of the above.

A

d) All the elements in the population are 25.

36
Q

If a teacher computes the mean for a set of test scores and then subtracts this mean
from each score, the SUM of the resulting set of difference scores will equal
a) zero.
b) unity.
c) n, the number of scores.
d) the mean.
e) n times the mean.

A

a) zero.

37
Q

In a set of 10 scores the value 2 occurs three times, the value 4 occurs twice, 6
occurs twice, and 7 occurs three times. What is the mean of the scores?
a) (2 + 2 + 6 + 7)/4
b) (2 + 4 + 6 + 7)/10
c) (32 + 24 + 26 + 37)/4
d) (32 + 24 + 26 + 37)/10

A

d) (32 + 24 + 26 + 37)/10

38
Q

The definition of variance

a) A measure of how the individual data points behave around the mean.
b) The square of a standard deviation
c) A measure of spread
d) All of the above

A

d) All of the above

39
Q 
This is expressed as a relative number expressing the magnitude of one occurrence or
condition in relation to another
a) Rate
b) Ratio
c) Both A and B are correct
d) None of the above
A

c) Both A and B are correct

40
Q

This can exist only if the numerator is included as part of the denominator

a) Rate
b) Ratio
c) Both are correct
d) None of the above

A

a) Rate

41
Q

Last year, price of paracetamol is P1.00 per tablet in 2 drugstores, P1.50 per tablet in
3 drugstore, and P2.00 per tablet in 2 drugstores. The number of drugstores with a
price of paracetamol less than the mean is:
a) 1
b) 2
c) 3
d) None

A

b) 2

42
Q

Nimonal variables

a) Mode
b) Median
c) Mean
d) None of the above

A

a) Mode

43
Q

Ordinal variables

a. Mode
b. Median
c. Mean
d. None of the above

A

b. Median

44
Q

Interval level variables

a. Mode
b. Median

d. None of the above

A

c. Mean

45
Q

Ratio level variables

a. Mode
b. Median
c. Mean
d. None of the above

A

c. Mean

46
Q

Sex

a. Mode
b. Median
c. Mean
d. None of the above

A

a. Mode

47
Q

Apgar score

a. Mode
b. Median
c. Mean
d. None of the above

A

b. Median

48
Q

Body mass index

a. Mode
b. Median
c. Mean
d. None of the above

A

c. Mean

49
Q

Immunization status

a. Mode
b. Median
c. Mean
d. None of the above

A

a. Mode

50
Q

Birthweight

a. Mode
b. Median
c. Mean
d. None of the above

A

c. Mean

51
Q

A textual presentation consists of describing the data in expository form. T OR F?

A

TRUE

52
Q

Large masses of data are best presented in a statistical table, which is a
systematic organization of data in rows and columns. T OR F?

A

TRUE

53
Q

The title is necessary for easy reference if more than one table is included in a
report or article. T OR F?

A

FALLS

54
Q

Footnote contains explanations, concerning individual figure, or row or a
column. T OR F?

A

TRUE

55
Q

The basis of classification of the histogram is quantitative and is applicable to
continuous variable. T OR F?

A

TRUE

56
Q

Frequency polygon is an area diagram with the same use as the pie chart. T OR F?

A

FALLS

57
Q

The dot diagram is used to portray changes such as growth of population,
temperature readings, birth and death rates from time to time. T OR F?

A

FALLS

58
Q

Sample is a subset off the population T OR F?

A

TRUE

59
Q

Quantitative variable is a variable that is expressed numerically because it can be
measured (e.g. heights of adult male). T OR F?

A

TRUE

60
Q

Independent variable is a variable which “hangs on” to another variable in
determining an association between two variables (e.g. the presence of disease
“hangs on” to age of person.) T OR F?

A

FALLS

61
Q

Temperature measured in terms of oC.

A. Nominal
B. Ordinal
C. Interval
D. Ratio

A. Qualitative variable
B. Discrete quantitative variable
C. Continuous quantitative variable

A

C

C

62
Q

Weight of the newborn infants

A. Nominal
B. Ordinal
C. Interval
D. Ratio

A. Qualitative variable
B. Discrete quantitative variable
C. Continuous quantitative variable

A

D

C

63
Q

Apgar score of babies 5 minutes after delivery

A. Nominal
B. Ordinal
C. Interval
D. Ratio

A. Qualitative variable
B. Discrete quantitative variable
C. Continuous quantitative variable

A

B

B

64
Q

Sex distribution of the first year medical students

A. Nominal
B. Ordinal
C. Interval
D. Ratio

A. Qualitative variable
B. Discrete quantitative variable
C. Continuous quantitative variable

A

A

C

65
Q

Number of pregnancies.

A. Nominal
B. Ordinal
C. Interval
D. Ratio

A. Qualitative variable
B. Discrete quantitative variable
C. Continuous quantitative variable

A

D

B

66
Q

Civil status of women in reproductive age in Barangay X.

A. Nominal
B. Ordinal
C. Interval
D. Ratio

A. Qualitative variable
B. Discrete quantitative variable
C. Continuous quantitative variable

A

A

A

67
Q

Occurrence of breast cancer among Filipino men and women.

A. Nominal
B. Ordinal
C. Interval
D. Ratio

A. Qualitative variable
B. Discrete quantitative variable
C. Continuous quantitative variable

A

A

A

68
Q

Platelet count of patients with dengue hemorrhagic fever

A. Nominal
B. Ordinal
C. Interval
D. Ratio

A. Qualitative variable
B. Discrete quantitative variable
C. Continuous quantitative variable

A

D

C

69
Q

Age of gestation

A. Nominal
B. Ordinal
C. Interval
D. Ratio

A. Qualitative variable
B. Discrete quantitative variable
C. Continuous quantitative variable

A

D

C

70
Q

City population size.

A. Nominal
B. Ordinal
C. Interval
D. Ratio

A. Qualitative variable
B. Discrete quantitative variable
C. Continuous quantitative variable

A

D

B

RESEARCH (5 decks)

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