Question

The following stem-and-leaf chart reports the number of movies rented per day at Video Connection: 12 0 2 3 4 5 5 7 13 1 2 3 14 6 8 8 9 15 4 7 8 16 3 5 17 2 4 5 6 8 18 2 6 8 19 1 3 4 5 6 20 0 3 4 6 7 9 21 2 2 3 9 22 7 8 9 23 0 0 1 7 9 24 8 25 1 3 26 27 5 6 6 7 8 a. How many days were studied? b. How many observations are in the last class? c. What are the smallest and the largest values in the entire set of data? , d. List the actual values in the fourth row. , , e. Not available in Connect. f. On how many days were less than 160 movies rented? g. On how many days were 220 or more movies rented? h. What is the middle value? (Round the final answer to 1 decimal place.) i. On how many days were between 200 and 280 movies rented?

Answer 1

The stem and leaf display is :

12 0 2 3 4 5 5 7

13 1 2 3

14 6 8 8 9

15 4 7

16 3 5

17 2 4 5 6 8

18 2 6 8

19 1 3 4 5 6

20 0 3 4 6 7 9

21 2 2 3 9

22 7 8 9

23 0 0 1 7 9

24 8

25 1 3

26   

27 5 6 6 7 8

a) Number of days that were studied = 57

b) Number of observations are in the last class = 5

c) The smallest value = 120

and the largest value = 278

d) Values in the fourth row = 154, 157

f) Number of days that were less than 160 movies rented = 16

g) Number of days that were 220 or more movies rented = 16

h) The middle value will be th value in the sorted data set.

The middle value = 194

i) Number of days that were between 200 and 280 movies rented = 26