1.What shape does the income histogram have?

A. Skewed left

B. Bell shaped

C. Skewed right

D. Uniform

2. In the grouped frequency table, what is the modal class (the class with the highest frequency)?

A. 315 - 416

B. 10 - 111

C. 213 - 314

D. 112 - 212

3. We told SPSS to create 8 classes, but there are only 7 entries in the grouped frequency table, Why?

A. It's the computer's fault.

B. There are no observations in the class starting at 620, so it is left out.

C. SPSS can't count.

D. I must have entered something incorrectly.

4. From the grouped frequency table, what percent of the observations are between 112 and 212? o

A. 65

B. 94.4

C. 13.0

D. 81.4

5. From the histogram based on the grouped frequency table, what is the frequency of the modal class (the one with the most observations)?

A. About 400.

B. It's too small to read from the scale.

C. About 70

D. About 20

5. From the dot plot, what can you conclude about the value of the highest observation?

A. It is more than 721.

B. Nothing.

C. It is 822.

D. It is more than 800.

7. From the stem leaf plot, how many observations are there that are classified as 'Extreme'?

A. 0246

B. 4

C. 17

D. 41

8. In the stem leaf plot, what identifies an observation as 'Extreme'?

A. It's far away from all the other values.

B. It is greater than or equal to 183

C. It's outside the upper fence.

D. It's a mystery.

9. From the stem-leaf plot, which stem has the most leaves?

A.47

B. 1

C. 2

D. 87

10. From the stem-leaf plot, how many observations have a value of 43?

A. 7

B. 9

C. It is cannot be determined from the stem-leaf plot.

D. 43