Question

Ronda recorded the colors of the last 250 cars driving by her house in the table below. Using the data, what is the probability that’s the nexts car to drive by will be red or blue?

Answer 1

The sum of all cars will be = 70 + 30 + 50 + 80 + 20 = 250
So,
the probability that’s the nexts car to drive by will be red = (red cars)/(total cars)
= 50 / 250 = 0.2

the probability that’s the nexts car to drive by will be blue = (blue cars)/(total cars) = 70 / 250 = 0.28
then

the probability that’s the nexts car to drive by will be red or blue
= 0.2 + 0.28 = 0.48