Measures of Central Tendency - Chapter 4

Question 1

The measure of variability specifies how __ the scores are spread.

Accepted Answer

Far apart

Question 2

_ is NOT used much in descriptive statistics.

Accepted Answer

Variance

Question 3

The symbols used for mean is generally from this language.

Accepted Answer

Greek

Question 4

In statistics, a central tendency is a central or typical value for a probability _.

Accepted Answer

distribution

Question 5

This is the scale value below which 50% of the scores fall.

Accepted Answer

Median

Question 6

The symbol for standard deviation of a population score is a Greek symbol for _.

Accepted Answer

sigma

Question 7

The symbol for the sample of the arithmetic mean is:

Accepted Answer

None of the above

Question 8

This measure of central tendency is the 2nd most frequently used.

Accepted Answer

Median

Question 9

The mean is sensitive to the exact value of all the scores in the distribution.

Accepted Answer

True

Question 10

The mean is NOT sensitive to extreme scores.

Accepted Answer

False - It IS sensitive to extreme scores.

Question 11

This measure of central tendency is the most frequent score in a distribution.

Accepted Answer

Mode

Question 12

The Mode is the easiest of the three measures of central tendency to determine.

Accepted Answer

True

Question 13

This is how far away the raw score is from the mean of its distribution.

Accepted Answer

Deviation Score

Question 14

The _ is the difference between the highest and lowest scores in the distribution.

Accepted Answer

Range

Question 15

Which measure of variability is NOT correct?

Accepted Answer

Covariance

Question 16

The arithmetic mean is the value you ordinarily calculate when you _ something.

Accepted Answer

Average

Question 17

Which one is NOT a measure of central tendency?

Accepted Answer

Variance

Question 18

In determining the Median, the centermost score if the number of scores is _.

Accepted Answer

Odd

Question 19

The Arithmetic Mean is the _ of the scores divided by the number of scores.

Accepted Answer

Sum

Question 20

The measure of dispersion relative to the mean.

Accepted Answer

Standard Deviation

Questions 20