This will be involving the simultaneous and random selection of three balls from a box, but assume that the box contains 7 red balls and 4 blue balls. The random variable X is defined to be the number of blue balls selected. A. How many different values are possible for the random variable

Fifty people were asked how much they paid for the last smartphone app they purchased. These data were collected. Let the random variable X be the price paid for the app, and let f(x)=P(X=x) be the probability mass function based on the result of this survey. Answer parts a through e below. a) Write f as a set of ordered pairs. f= (Type an ordered pair, using integers or decimals. Use a comma to separate answers as needed. Do not include the $ symbol in your answer.) Draw the probability distribution as a histogram. Choose the correct histogram below. A. 0.41% 0.2 Hum 1234567 X=x Q Q 2 b) Find the cumulative probability function F. c) Find f(5). f(5)= (Type an integer or a decimal.) What does f(5) represent? O A. The probability that a randomly selected person paid more than $5 for an app OB. The probability that a randomly selected person did not pay $5 for an app O C. The probability that a randomly selected person paid at least $5 for an app OD. The probability that a randomly…