1. Number of Movies Frequency 025 118 224 316 45 TOTAL: 88 The following data shows the number of movies 88 students watched one week during the summer.

2. Calculate: The sample mean The first quartile The median The third quartile The IQR Data must be entered into your calculator.

3. Graph: Boxplot Default Histogram Default Set Window Data must be entered into your calculator.

4. Length of CallFrequency 425 1415 2410 349 444 541 The following data shows the lengths (in minutes) of 64 international telephone calls using a prepaid calling card.

5. Calculate: The sample mean The sample standard deviation The first quartile The median The third quartile The IQR

6. Plot : Boxplot Histogram

7. Does the histogram of this data appear to be Skewed right? Skewed left? Symmetrical?

8. Are their any potential outliers (values that do not seem to “fit” the rest of the data)? Are there any values 1.5*IQR above Q3? Are there any values 1.5*IQR below Q1? Potential Outliers require further investigation.

9. 1.5*IQR = 1.5*(Q3-Q1) = 1.5*(24-4) = 30 Are there any values 1.5*IQR above Q3? Q3 + 1.5*IQR = 24 + 30 = 54 NO. The largest value is 54. Are there any values 1.5*IQR below Q1? Q1 – 1.5*IQR = 4 – 30 = - 26 NO. The smallest value is 4.