Question

A bag contains 3 red cubes, 4 yellow cubes, and 3 green cubes. You choose a cube without looking, note its color, and put the cube back in the bag. Suppose you do this a total of 80 times. About how many times would you expect to choose a red or yellow cube?

Answer 1

is it multiple choice that would help

Explanation:

Answer 2

• 56 times

Explanation:

Total cubes:

• 3 + 4 + 3 = 10

Number of yellow or red:

• 3 + 4 = 7

Probability of yellow or red:

• 7/10

Same probability 80 times:

• 80*7/10 = 56

Expected number is 56