Histograms and frequency polygons are visual representations of frequency distributions.

Histograms and frequency polygons are visual representations of frequency distributions.

a. True
b. False

Q. 2

What is the interquartile range of the following groups of scores?

b. 7.0 - 10.0
c. 7.5 - 10.5
d. 8.0 - 10.5
e. 1.5 - 3.0

Q. 3

What is the range of the following groups of scores: 4, 7, 8, 8, 9, 10, 12, and 14?

a. 8
b. 8.5
c. 9
d. 10
e. 11

Q. 4

What is the mode of the following groups of scores: 4, 7, 8, 8, 9, 10, 12, and 14?

a. 8
b. 8.5
c. 9
d. 9.5
e. None of these

Q. 5

What is the median of the following groups of scores: 4, 7, 8, 8, 9, 10, 12, and 14?

a. 8
b. 8.5
c. 9
d. 9.5
e. None of these

Q. 6

What is the mean of the following group of scores: 4, 7, 8, 8, 9, 10, 12, and 14?

a. 8
b. 8.5
c. 9
d. 9.5
e. None of these

Q. 7

On a normally distributed curve, which is true?

a. The mode is lower than the mean, which is lower than the median.
b. The median is lower than the mode, which is lower than the mean.
c. The mean is lower than the median, which is lower than the mode.
d. The mode is lower than the median, which is lower than the mean.
e. The mean, median, and mode are the same.

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Histograms and frequency polygons are visual representations of frequency distributions.

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