Q11

For parts d, e I highly recommend using a graphing calculator. If you use a calculator, just indicate what you are using and no need of more work to be shown. In the accompanying table, the random variable x represents the number of televisions in a household in a certain country. Determine whether or not the table is a probability distribution. Find the indicated probabilities. If it is a probability distribution, find the mean and standard deviation. a) Is the table a probability distribution? Why? Discuss the requirements. (2pts) b) Find the probability of getting exactly 2 televisions in a household. (2pts) c) Find the probability of getting 2 or more televisions in a household. (2pts) d) The mean of the distribution is: (2pts) e) The standard deviation of the distribution is:(2pts) f) Min usual number of televisions is: (2pts) g Max usual number of televisions is: (2pts) X P(x) 0 0.09 0.13 2 0.25 3 0.29 A 0.14 5 0.10 For the toolbar press ALT+F10.(PO or ALT+EN+F10 (Mack Save All Answers Save and Submit