Variance:    An ice cream shop sells three flavors: vanilla, chocolate, and strawberry. The daily sales in dollars are represented by the following distribution: FLAVOR PROBABILITY VANILLA (V) 0.4 CHOCOLATE (C) 0.3 STRAWBERRY (S) 0.3   If the expected daily sales are $300 for vanilla, $400 for chocolate, and $500 for strawberry, calculate the variance of the daily sales.

The owner of a farmer's market was interested in determining how many oranges a person buys when they buy oranges. He asked the cashiers over a weekend to count how many oranges a person bought when they bought oranges and record this number analysis at a later time. The data is given below in the table. The random variable x represents the number of oranges purchased and P(x) represents the probability that a customer will buy x oranges. Determine the variance of the number of oranges purchased by a customer. Round to two decimal places. X P(x) 1 0.05 O A. 0.56 OB. 3.97 OC. 3.57 OD. 1.95 2 3 0.19 0.20 4 5 0.25 0.12 6 0.10 7 8 0 0.08 9 10- 0 0.01