1. Warm Up The travel times for 16 people to their work location is listed below. 2635102118458929 2416113221342030 Find the following for the data: Five number summary IQR Mean Outliers (if any) Standard Deviation Draw a box-plot (box and whisker plot)

2. 20 minutes to work on the evens

3. Unit 1 Review Answers 1.Skewed right 2.Bell curve/symmetrical 3.Quantitative 4.Qualitative 5.105.8 6.33 7.450.4 8.224 9.None 10.Finland 11.20.7 12.Points on boxplot: 25, 58, 72, 81, 98 13.Points on boxplot: 310, 510, 705, 1125, 1720 outliers 2500 & 3700 14.534.5 15.81 16.167 17.Response bias/Voluntary response 18.Selection bias/undercoverage 19.Biased

4. AFM Unit 8 Review Univariate Stats

5. 1a) Label each part of the box plot below. b) What percent of data is above Q1?

6. 2) The histogram below shows the graphs of telephone bills of customers in a certain city. a)How many customers had bills of at least $40? b) What is the shape of the data?

7. 3) The following is a set of quiz grades for the first quiz in Mr. Smith’s class: 72, 90, 53, 75, 62, 100, 30, 69, 82, 100, 75, 58, 40, 85, 100, 55, 66, 70, 81, 60, 65 a)Find the 5 number summary b)Find the IQR (Interquartile Range)

8. 4) Describe the data as qualitative or quantitative. a)Favorite subject b)Shoe size c)Type of pet your family owns

9. 5) In an Oreo factory, the mean mass of a cookie is given as 40 g. For quality control, the standard deviation is 2 g. a)If 10,000 cookies were produced, how many cookies are within 2 g of the mean? b) What percent of cookies weight more than 38 grams?

10. 6) Find the mode of each data set below: a) 84, 75, 48, 97, 32, 67, 90 b) 90, 88, 78, 88, 90, 62, 51, 100

11. 7) A student got the following test grade in Math 90, 85, 77, 81, 99, 45, 80, &59 a)What are his mean & median grades? b)Are any of the test grades outliers? c)Which measure of center is a better representation of his grades?

12. 8) The shelf life of a particular dairy product is normally distributed with a mean of 12 days and a standard deviation of 3 days. a)What percent of the products last between 9 and 15 days? b)If there are 650 products, about how many last 15 days of more?

13. 9) Find the range 21, 54, 38, 41, 40, 39, 37, 29, 27, 30

14. 10) What shape is each histogram? a)b) c) d)