BIOE: WEEK 4 Flashcards

1
Q

At the conclusion of this unit, the students are expected to:
* describe the different measures of

A
  • central tendency
  • dispersion
  • location
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2
Q

interpret summary measures such as

A
  • mean, mode, median
  • range, variance, standard deviation and coefficient
    variation
  • quartile, decile, and percentile
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3
Q
  • refers to “center” of the distribution of observations
A

Measures of Central Tendency

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4
Q

also known as average

A

(Arithmetic) MEAN

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5
Q
  • middle most value in a set of observations put in an array
  • if odd: middle most observation
  • if even: mean of 3 middlemost observation
A

MEDIAN

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6
Q
  • always exists and is unique
A

MEDIAN

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7
Q
  • most frequently occurring value in a set of observation
A

MODE

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8
Q
  • gives information as to the tendency of values to clump together
  • tools describing the variability of the observations
A

Measures of Dispersion

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9
Q
  • simplest measure of location
  • formula
    = highest observation – lowest observation
A

RANGE

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10
Q
  • measure of variability that takes the mean as the reference point
A

VARIANCE

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11
Q
  • unit is the same as that of the original set of observations
A

STANDARD DEVIATION

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12
Q
  • expresses the SD as percentage of mean
A

COEFFICIENT VARIATION

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13
Q
  • determines the location/ position of particular value in an array of
    distribution
A

Measures of Location

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14
Q
  • points of distribution that divides the observation into 4 equal parts
A

QUARTILES

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15
Q

points of distribution that divides the observation into 10 equal parts

A

DECILES

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16
Q
  • points of distribution that divides the observation into 100 equal parts
A

PERCENTILES

17
Q
  • calculated by dividing the cumulative frequency by the total number
    of observations (n)
  • then multiply it by 100
A
  • Cumulative percentage
18
Q
A