Study the empirical distribution below. The two vertical lines in the middle of the distribution represent the mean or the median. Which statement is true?

Group of answer choices

a. mean

b. mean = median = mode

c. mean

d. mean > median > mode

Question 2

What is the median of the following numbers?

1, 3, 2, 5, 4, 4

Group of answer choices

a. 3

b. 4

c. 3.5

d. 1

Question 3

1pts

The median height in a certain population is 65 inches. Is it possible to find the mean without getting additional data?

Group of answer choices

a. If the population is monoracial, the mean is easily calculated.

b. If the population is not too large, the mean is easily calculated.

c. If the population distribution is symmetric, the mean is easily calculated.

d. If the inclusion-exclusion criteria are specified, the mean is easily calculated.

Question 4

1pts

Which of the following is true about the coefficient of variation?

I. It does not have a unit of measurement.

II. It is the square root of the variance.

III. It is unaffected by a change in the unit of measurement.

IV. It is not defined when the mean is 0.

Group of answer choices

a. I, III and IV only

b. I only

c. I and III only

d. I and IV only

Question 5

1pts

Study the stem-and-leaf plot below. Describe the shape of the distribution:

11

1189

12130332

1257889951

132314403

13588

1404

1487

1502

157

Group of answer choices

a. symmetric

b. right-skewed

c. bimodal

d. left-skewed

Question 6

1pts