M5 M6 Formative Questions

Question 1

Data is a subset of the populations

Answer 1

false sample

Question 2

A collection consists of the totality of the observations with which we are concerned

Answer 2

false population

Question 3

Sampling comprises those methods concerned with collecting and describing a set of data so as to yield meaningful information

Answer 3

false descriptive stat

Question 4

Deduction is the science of collecting, analyzing, and interpreting data

Answer 4

false statistics

Question 5

sample is a type of data based on counts and measures

Answer 5

false numerical data

Question 6

the highest height in the group is 192 cm.

Answer 6

descriptive statistics

Question 7

the average height is 181 cm

Answer 7

descriptive stat

Question 8

the average height of the group will continue to increase

Answer 8

inferential stat

Question 9

from the last 3 members to join, it seems the next one will have a height of 179-182cm

Answer 9

inferential stat

Question 10

15% of the budget is allocated for security

Answer 10

descriptive stat*

Question 11

stock value is expected to decrease next week

Answer 11

inferential stat

Question 12

the volume of production in plant 1 is greater than in plant 2

Answer 12

descriptive stat

Question 13

study shows that 9 out of 10 doctors choose Safesoap

Answer 13

inferential stat

Question 14

at least 5% of the fires reported last year in a certain city were deliberately set by arsonists

Answer 14

differential

Question 15

as a result of a recent poll, most Americans are in favor of building additional nuclear power plants

Answer 15

inferential

Question 16

as a result of recent cutbacks by oil-producing nations, we can expect the price of gasoline to double in the next year

Answer 16

inferential stat

Question 17

of all patients who have received this particular type of drug at a local clinic, 60% later developed significant side effects

Answer 17

descriptive stat

Question 18

Define a suitable population from which the following samples are selected:

20% of the purchases are under P500

Answer 18

all the purchases

Question 19

5 out of 15 restaurants in the city are rated more than 3 stars

Answer 19

descriptive

Question 20

looking at the trends, the number of cases will continue to decrease in the next 3 years

Answer 20

inferential stat

Question 21

20% of the infected cases from last month were infected again

Answer 21

descriptive

Question 22

based on the measures samples, the average volume of output will be around 328-333ml

Answer 22

inferential stat

Question 23

Define a suitable population from which the following samples are selected

20 cases have 10% chance of not being resolved

Answer 23

all cases

Question 24

define a suitable population from which the following samples are selected

a coin is tossed 100 times 34 tails are recorded

Answer 24

100 coin tosses

Question 25

the frequency is the number of observations that belong in each class

Answer 25

true class freq

Question 26

a histogram is the organization of raw data in table form, using classes and frequencies

Answer 26

false frequency distribution

Question 27

cumulative frequencies are the smallest and highest data value that can be included in the class

Answer 27

false class limitations

Question 28

the frequency polygon is a line graph showing the distribution of values of the observation using the frequencies and class marks

Answer 28

true

Question 29

an ogive is the organization of raw data in table form, using classes and frequencies

Answer 29

false frequency distribution

Question 30

class boundaries are numbers used to separate the classes so that there are no gaps in the frequency distribution

Answer 30

true

Question 31

the frequency polygon is a bar graph showing the distribution of values of the observation using the frequencies and class boundaries

Answer 31

false histogram

Question 32

the frequencies are used to show how many data values are accumulated up to and including a specific class

Answer 32

false cumulative frequency

Question 33

the classes must be mutually exclusive or exhaustive

Answer 33

true

Question 34

find the probability of getting a 7 from rolling a single die

Answer 34

0