Chapter 4 - Measures of Central Tendency

Question 1

Frequency Distribution

Answer 1

Table that organizes a set of scores

Question 2

X

Answer 2

Value of a score (raw score)

Question 3

f

Answer 3

Frequency of scores

Question 4

N

Answer 4

Total number of scores

Question 5

∑ f X

Answer 5

The sum (total value) of scores

Question 6

Mode

Answer 6

Score that occurs most frequently

Question 7

Median

Answer 7

Midpoint in distribution

Question 8

Mean

Answer 8

Average

Question 9

Symmetrical Distribution

Answer 9

Mean, median and mode are equal in value

Question 10

Positively Skewed Distribution

Answer 10

The tail of the distribution follows the positive values along the X-axis of the distribution (towards the higher numbers on the X-axis). The median falls right to the mode and the mean falls even further to the right of the median.

Question 11

In positively skewed distribution, the median falls _______ of the mode and the mean falls even further to the _____ of the median.

Answer 11

Right

Question 12

Negatively Skewed Distribution

Answer 12

The tail of distribution follows the zero point of the X-axis (toward the negative values on the axis). The order of the measures of central tendency is reversed from that in a positively skewed curve. The median falls to the left of hte mode and the mean falls even further to the left, past the median.

Question 13

In negatively skewed distribution, the median falls to the _____ of the mode and the mean falls even further to the _____, past the median.

Answer 13

Left