1. A relative frequency histogram having a longer tail to the right than to the left is said to be ________. a. skewed to the left b. normal c. a scatter plot d. skewed to the right 2.A plot that...

1. A relative frequency histogram having a longer tail to the right than to the left is said to be ________.
a. skewed to the left
b. normal
c. a scatter plot
d. skewed to the right

2.A plot that allows us to visualize the relationship between two variables is a(n) ________ plot.
a. frequency
b. scatter
c. dot
d. ogive

3.If a population distribution is skewed to the right, then, given a random sample from that population, one would expect that the ________.
a. median would be greater than the mean
b. mode would be equal to the mean
c. median would be less than the mean
d. median would be equal to the mean

4. In the calculation of a mean for grouped data, ________ are used.
a. total sample size and sum of the midpoints of each class
b. total sample size and sum of the weighted midpoints
c. sum of the frequency of each class and the sum of the midpoints of each class
d. sum of the frequency of each class and the sample midpoint

5. Which of the following is not an example of unethical statistical practices?
a. inappropriate interpretation of statistical results
b. using graphs to make statistical inferences
c. improper sampling
d. descriptive measures that mislead the user