First off we need to find the denomonator: 11+37+83+19=150
Okay so our probability of getting a small size of a t-shirt will be 11/150 They sold 45,000 That's where we need to change our denominator to get how many shirts were small
45,000÷150=300 300×11=3,300 I multiplied 11 because of the numerator
You got add all the numbers up and divide it by how many numbers there are to get the average. 9.4 +9.7 + 9.9 + 9.8 = 38.8 divided by 4 =9.7 is Joey's average. 9.5 +9.2 +9.7 +9.6 =38 divided by 4 = 9.5 is Carlos' average. Joey has more average by 0.2.