WEEK 3

Question 10

Use the pie chart at theright, which shows the number of tulips purchased from a nursery. Find the probability that a tulip bulb chosen at random is purple.

A pie chart titled "Tulips purchased from a nursery" is divided into three sectors with labels and approximate sizes as a percentage of a circle as follows: Red Tulip Bulbs 50, 50 percent; Yellow Tulip Bulbs 25, 25 percent; Purple Tulip Bulbs 25, 25 percent.

Tulips purchased from a nursery

RedTulipBulbs50

YellowTulipBulbs25

PurpleTulipBulbs25

The probability that a tulip bulb chosen at random is purple is

(Type an integer or adecimal.)

Question 11

Use the pie chart at theright, which shows the number of workers(in thousands) by industry for a certain country. Find the probability that a worker chosen at random was not employed in the agriculture,forestry,fishing,andhunting industry.

A pie chart consists of a circle divided into four sectors with labels as follows: Services, 115,298; Agriculture, forestry, fishing, and hunting, 2572; Manufacturing, 16,100; Mining and construction, 11,062.

115,298-services

11,062- mining and construction

16,100-manufacturing

2572-agriculture, forestry, fishing, and hunting

The probability is

(Round to three decimal places asneeded.)

Question 12

Astem-and-leaf plot for the number of touchdowns scored by all Division 1A football teams is shown below. Complete parts(a) through(c).

1 3 4 5 7 8 8 Key: 1|5=15

2 0 1 2 2 3 4 5 7 8 8 9

3 0 0 1 1 1 2 2 3 3 4 4 5 5 7 7 7 8 9

4 0 0 1 2 2 3 4 5 5 5 5 6 7 8 8 9

5 0 2 3 5 5 7 8

6 1 3 6 7

7

8 7

(a) If a team is selected atrandom, find the probability the team scored at least 32 touchdowns. ______

(Round to three decimal places asneeded.)