Deck 3: Measures of Central Tendency

Question 1

A measure of central tendency characterizes _____ of an entire distribution of scores.

A) the variability
B) the standardization
C) the middleness
D) none of the above

Answer 1

the middleness

Question 2

For a distribution of exam scores, the _____ is calculated by summing all of the scores in a distribution and dividing by the total number of scores.

A) median
B) mode
C) mean
D) average deviation

Answer 2

mean

Question 3

Seven students reported the following individual earnings from their sale of wrapping paper: $7, $13, $3, $5, $2, $9, and $3. In this distribution of individual earnings, the mean is _____.

A) 7
B) 3
C) 6
D) none of the above

Answer 3

6

Question 4

Seven students reported the following individual earnings from their sale of wrapping paper: $7, $13, $3, $5, $2, $9, and $3. In this distribution of individual earnings, the median is _____.

A) 7
B) 3
C) 5
D) none of the above

Question 5

Seven students reported the following individual earnings from their sale of wrapping paper: $7, $13, $3, $5, $2, $9, and $3. In this distribution of individual earnings, the mode is _____.

A) 7
B) 3
C) 5
D) none of the above

Question 6

During the past year, Cindy and Bobby each read 2 books, Greg read 25, Jan read 12, and Marcia read 9. The mode for this distribution is:

A) 2.
B) 9.
C) 10.
D) 50.

Question 7

During the past year, Cindy and Bobby each read 2 books, Greg read 25, Jan read 12, and Marcia read 9. The mean number of books read by these individuals was:

A) 2.
B) 9.
C) 10.
D) 50.

Question 8

When Ms. Jones calculated her students' accounting test scores, she noticed that one student had an extremely low score. Which measure of central tendency would be the best to use in this situation?

A) Mean
B) Standard deviation
C) Mode
D) Median

Question 9

Imagine that 86,999 penniless people live in Centerville. Bill Gates whose net worth is $87,000,000,000 moves to Centerville. Now the mean net worth in this town is _____, and the median net worth is _____.

A) 0; 0
B) 0; $1,000,000
C) $1,000,000; 0
D) $1,000,000; $1,000,000

Question 10

The middle score in a distribution of scores is the _____, and the arithmetic average for a distribution of scores is the _____.

A) median; mean
B) mean; medial
C) mode; median
D) mode; mean

Question 11

The mode is the _____, and the mean is the _____.

A) score occurring with the greatest frequency; middle score
B) middle score; arithmetic average
C) score occurring with the greatest frequency; arithmetic average
D) arithmetic average; middle score

Question 12

The mean can be used with _____ data.

A) nominal
B) interval
C) ratio
D) both interval and ratio

Question 13

The median can be used with _____ data.

A) ordinal
B) interval
C) ratio
D) ordinal, interval, and ratio

Question 14

The mode can be used with _____ data.

A) nominal, ordinal, interval, and ratio
B) only ordinal
C) only nominal
D) only interval and ratio

Question 15

The mode can be used with _____, and the median can be used with _____.

A) interval and ratio data only; nominal data only
B) nominal data only; ordinal data only
C) all types of data; ordinal, interval, and ratio data only
D) none of the above

Question 16

Calculate the mean, median, and mode for the following sample.
2, 2, 6, 9, 10, 11, 15, 17, 18, 20