Roxanne Singleton

Measures of Central Tendency Be sure to show your work so that partial credit may be awarded. 4. An MM207 statistics class surveyed 24 students to find out how many hours they spent doing homework during the previous week. 10 11 10 8 10 10 15 12 10 8 13 1...

2. A research team studied the ages of patients who had heart attacks caused by smoking. The ages of 34 patients who suffered a heart attack were as follows. 29 30 36 41 45 50 57 61 28 50 66 58 60 38 36 47 40 32 58 46 61 40 55 32 61 56 45 46 62 66 38 40 4...

Measures of Variation Be sure to show your work 5. A placement test has a mean of 65 and a standard deviation of 2. A histogram of the data shows that the distribution is bell-shaped. Using the Empirical Rule, what two values have about 95% of the curve b...