A car dealership sells 0, 1, or 2 luxury cars on any day. When selling a car, the dealer also tries to persuade the customer to buy an extended warranty for the car. Let X denote the number of luxury cars sold in a given day, and let Y denote the number of extended warranties sold. The joint probability function of X and Y can be given by the following equation. P(X = 0, Y = 0) =1/6
P(X = 1, Y = 0) =1/12
P(X = 1, Y = 1) =1/6
P(X = 2, Y = 0) =1/12
P(X = 2, Y = 1) =1/3
P(X = 2, Y = 2) =1/6

Required:
Find the mean and variance of X.

How many square feet of out door carpet will we need for this hole? 8ft 3ft 12ft 4ft

Lems1. the following data set represents the scores on intelligence quotient(iq) examinations of 40 sixth-grade students at a particular school: 114, 122, 103, 118, 99, 105, 134, 125, 117, 106, 109, 104, 111, 127,133, 111, 117, 103, 120, 98, 100, 130, 141, 119, 128, 106, 109, 115,113, 121, 100, 130, 125, 117, 119, 113, 104, 108, 110, 102(a) present this data set in a frequency histogram.(b) which class interval contains the greatest number of data values? (c) is there a roughly equal number of data in each class interval? (d) does the histogram appear to be approximately symmetric? if so,about which interval is it approximately symmetric?

Given the equation f(x)=a(b)x where the initial value is 40 and the growth rate is 20% what is f(4)