1) Consider the following data: 2, 3, 6, 7, 9. What is ( x)?

2) Which of the following represents the nominal scale of measurement?*

body fat

test score

vertical jump

student number

age

3) Characteristics of a population are called __________, whereas those of a sample are termed __________.

statistics; measures

parameters; statistics

statistics; parameter

variables; statistics

4) The statistical term for the shape (or symmetry) of a distribution is __________ and the peakeness of a curve is referred to as___________.

normal, abnormal

skewness, normal

kurtosis, skewness

skewness, kurtosis

abnormal, normal

5) 4, 8, 10, 12, 14, 7, 5, 9, 13, 10. What is the variance? Include up to two decimals only

6) If everyone in a classroom scores the same on an exam, the variance is?

7) For a set of 5,000 scores, the mean is 98, the median is 110, and the mode is 120. Which of the following describes the distribution?

homogeneous

heterogeneous

positively skewed

negatively skewed

8) 4, 8, 10, 12, 14, 7, 5, 9, 13, 10. What is the standard deviation?

9) 4, 8, 10, 12, 14, 7, 5, 9, 13, 10, 25, 28, 7, 55, 49, 16, 47, 69, 19, 11. (n=20). What is the median?

10) In a normal distribution, the mean divided by the median equals?

0.00

0.50

1.00

100

11)If a distribution of cholesetrol scores has a mean of 150, median of 200, and mode of 200, it is likely that the distribution is?

normally distributed

negatively distributed

uniformly distributed

positively skewed

negatively skewed

12) 42, 110, 42, 29, 37, 55, 62, 87. What is the median?