Controlled laboratory experiment | Mathematics homework help

The following data represent the length of life, in seconds, of 50 fruit flies subject to a new spray in a controlled laboratory experiment:

17

20

10

 

23

13

12

19

18

24

12

14

 

 

13

 

 

10

13

 

16

18

 

13

 

32

 

 

10

11

13

 

18

 

10

 

27

19

16

 

 

10

 

14

15

10

 

 

 

15

(a) Construct a double-stem-and-leaf plot for the life span of the fruit flies using the stems 0∗, 0·, 1∗, 1·, 2∗, 2·, and 3∗such that stems coded by the symbols _ and · are associated, respectively, with leaves 0 through 4 and 5 through 9.

(b) Set up a relative frequency distribution.

(c) Construct a relative frequency histogram.

(d) Find the median.