T102 Statistics Review

1. The scores on the last test in Mrs. McCann’s math class follow:

86, 72, 81, 82, 77, 75, 79, 82, 82, 70,

70, 81, 83, 84, 88, 88, 86, 79, 87, 75

Make a line plot for the data.

2. The speeds of twenty cars on a street follow:

38, 43, 32, 28, 30, 41, 37, 38, 28, 29,

39, 39, 33, 30, 39, 25, 29, 41, 29, 35

Make a stem-and-leaf plot for the data.

3. A parking garage surveys its customers to find out what part of the city they

come from. The data follows:

East: 90 West: 50 North: 80 South : 60

Make a histogram for the data.

4. Use the following information to make a bar graph showing the number of

members of an athletic club that participate in various sports.

Tennis 80

Swimming 90

Aerobics 55

Volleyball 30

Track 20

5. Listed below is the percentage of students registered for various majors at

college. use this information to make a circle graph.

Business 30%

Engineering 15%

Liberal Arts 35%

Undecided 20%

6. For the following data: 24, 35, 25, 28, 27, 37, 33, 33, 33, 31 , 29, 37

Find: A) Mean B) Median C) Mode

7. For the following data: 38, 26, 33, 27, 32, 30, 28, 30, 26

Find: A) the range B) the variance C) the standard deviation

8. Paul keeps track of the number of eggs he collects from his chickens each

day for ten days. Make a box plot for the results below:

44, 40, 35, 30, 37, 47, 8, 21, 28, 11

ANSWERS

5. Business 108^◦, Engineering 54^◦, Liberal Arts 126^◦, Undecided 72^◦

6. A) 31 B) 32 C) 33

7. A) 12 B) 13.5 C) 3.68

8. Five number summary: 8, 21, 32,5, 40, 47