Chapter 3

Question 1

Statistical measures used to yield information about the center or middle part of a group of numbers are called ___?

Answer 1

Measures of central tendency

Question 2

The ‘average’ is the ___

Answer 2

Mean

Question 3

The value occurring most often in a group of members is called ___

Answer 3

Mode

Question 4

In a set of 110 numbers arranged in order, the median is located at the ___ position

Answer 4

55.5th

Question 5

If a set of data has odd number of values arranged in ascending order, the median is the ___ value.

Answer 5

Middle or center

Question 6

Consider the data: 5,4,6,6,4,5,3,2,6,4,6,3,5

The mode is ___

Answer 6

6

Question 7

Consider the data: 5,4,6,6,4,5,3,2,6,4,6,3,5

The median is ___

Answer 7

59/13

Question 8

Consider the data: 5,4,6,6,4,5,3,2,6,4,6,3,5

The mean is

Answer 8

5

Question 9

If a set of values is a population, the mean is denoted by ___

Answer 9

u

Question 10

In computing a mean for grouped data, the ___ is used to represent all data in a given class interval.

Answer 10

Class midpoint

Question 11

The mean for the data given below is ___

Class interval.                Frequency
50 under 53.                       14
53 under 56.                       17
56 under 59.                       29
59 under 62.                       31
62 under 65.                       18

Answer 11

21.8

Question 12

Measures of variability describe the ___ of a set of data.

Answer 12

Spread or dispersion