Knowledge and Understanding

Math 6 Name ______Unit 6: Statistics Post-Test REVIEW #2 Date ______

1. Explain the difference between a measure of center and a measure of spread. Give at least two examples of each.

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2. What information does a histogram provide? ______

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Proficiency of Skills

3. Max scored the following points at five basketball games: 21, 24, 9, 11, 15

MEAN MEDIAN MODE RANGE

Application

5. Use the following data to create a box plot:

Identify:

Minimum: ______

Lower Quartile: ______

Median: ______

Upper Quartile: ______

Maximum: ______6. Use the following data to create a histogram:

7. Which set of intervals CAN be used for the data given in problem # 6?

A. 0-2, 3-5, 6-8, 9-11, 12+ B. 0-1, 2-5, 6-7, 8-15 C. 1-2, 3-4, 5-6, 7-8, 9-10, 11-12 D. 0-3, 3-6, 6-10, 10-13

8. Create a dot/line plot of the following data: 9. Find the mean absolute deviation for the following quiz scores: 92, 85, 80, 95, 88.

10. Baddat Skool’s test scores are 65, 60, 50, and 80. What does he need to score on the next test for his test average to be a 70? ______

11. Six students were surveyed to find out how much weekly allowance they received. The following data was collected: $5, $8, $10, $15, $20, $50. Determine the MAD (mean absolute deviation).

12. Smardie Pantz had a 92 test average in Math and in Language Arts. The MAD in Math was 2.5, and the MAD in Language Arts was 10. Which statement below is the best interpretation of this data?

A. Smardie’s scores in Math were much more spread out than Language Arts. Scores were more consistent in Language Arts. B. Smardie could not have scored less than an 85 on a Language Arts test. C. Smardie’s scores in Math were much more consistent than Language Arts. Scores were much more spread out in Language Arts. D. Smardie’s MAD in Science is 12.5.

13. Patton is surveying his awesome classmates in homeroom. Which question below is NOT a statistical question? A. How many One Direction songs are on your MP3? B. What was your highest grade on your last report card? C. How many kids are in your homeroom? D. How many “Diary of a Wimpy Kid” books have you read?

14. Identify the interquartile range from the box plot below. ______15. Look at the box plot in #14. What does the shape and spread of the box plot tell you about the data? ______

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16. Which measure is MOST affected by an outlier?

A. Mean B. Median C. IQR D. Mode