Question

Seniors at a high school were asked what color car they drive. The results were put in a circle graph. The measure of each central angle is shown. If a senior is chosen at random from this school, find the probability of each response.

What Color Is Your Car?
Car color is not red or blue.


options:

0.51

0.47

0.53

0.49

Answer 1

0.53 is the correct answer.

Explanation:

Answer 2

P(The color of the car is red) is 0.32 .

P(The color of the car is white) is 0.34 .

P(The color of the car is silver) is 0.19 .

P(The color of the car is blue) is 0.15 .

P(car color is not red or blue) is 0.53 .

Explanation:

We know that total angle subtended at the center by a complete circle is

360° .

According to the question,

P(The color of the car is red)

=
`\frac {115.2}{360}`

= 0.32

P(The color of the car is white)

=
`\frac {122.4}{360}`

= 0.34

P(The color of the car is silver)

=
`\frac {68.4}{360}`

= 0.19

P(The color of the car is blue)

=
`\frac {54}{360}`

= 0.15

So

P(car color is not red or blue)

= 1 - (0.15 + 0.32)

= 0.53