Please see attached.

Chapter 4 Written Homework 2. The demand for a product varies from month to month. Based on data from past years, the following probability density function shows the probabilities of MNM company's monthly demand. Probabilities of MNM company's monthly demand Unit Demand P(X=x) 1200 0.19 2100 0.30 3300 0.40 3800 0.11 a) What is the probability that MNM will sell 3300 units next month? b) Given the information above, how many units can they expect to sell in a month? c) Calculate the standard deviation. d) Each unit produced costs the company $8.00, and each unit is sold for $25.00. How much will the company gain or lose in a month if they stock the expected number of units demanded but sell 2100 units? Chapter 4 Written Homework 1. In a recent survey, 10,000 households were randomly selected. One of the questions on the survey asked how many TVs they had. The results are given in the table below. Number of TVs to number of households # of # of TVs Households O 160 1 3140 2 3790 3 1920 4 5 P(X=x) 780 210 Total 10,000 a) Fill in the third column of the table to create a probability density function P(X=x). b) What is the probability that a randomly-selected household would have exactly 4 TVs? c) What is the probability that a randomly-selected household would have at least 2 TVs? d) What percentage of homes would have no TVs? e) What is the average number of TVs in a household