Question

There are 25 white cars, 15 blue cars, 21 red cars, and 30 black cars on a dealership lot. What is the probability of selecting a red car off the lot? Round to three decimals.

Answer 1

The probability of selecting a red car off the lot is 0.231.

Explanation:

Given:

Number of white cars = 25

Number of blue cars = 15

Number of red cars = 21

Number of black cars = 30

We need to find the probability of selecting a red car off the lot.

Solution:

First we will find the Total number of cars in the lot.

Now we can say that;

Total number of cars in the lot is equal to sum of Number of white cars and Number of blue cars and Number of red cars and Number of black cars.

framing in equation form we get;

Total number of cars in the lot =
`25+15+21+30 = 91`

Now to find the probability of selecting a red car off the lot we will divide Number of red cars by Total number of cars in the lot.

framing in equation form we get;

P(red) =
`(21)/(91)=0.2307`

Rounding to three decimals we get;

P(red) = 0.231

Hence The probability of selecting a red car off the lot is 0.231.