2. Let X denote the number Cars sold during a particular month by certain dealership. The pmf of X is I 0 1 2 3 4 5 P(X = x) .1 .2 .3 0.2 0.1 0.1 80% of all car buyers at the dealership also purchase an extended warranty. Let Y denote the number of car buyers that also buy an extended warranty. (a) Calculate the joint distribution table for X and Y. (Hint: What are values of X and Y? To calculate P(X = x,Y = y), use the fact that P(Y = y|X = x) will have a binonmial distribution with p = 0.7 and n = x. Finally calculate P(X = x, Y = y) = P(Y = y|X = x)P(X = x).) (b) Calculate the probability of the event "Every car buyer, also buys extended warranty". That is P(XY).

Read measurements w-z on the enlarged fractional rule shown in Figure 30-13.

The following table shows a sample of room rates for a 100 room resort hotel in Nova Scotia for the time period Jan. 1 to Dec. 2003. Note that 1/1-7/3 means January 1 to March 7, 2003. Be sure to scroll down to see the bottom of the rate table. 2003 Room Rates A Oceanfront 1 double bed Oceanfront 2 double beds Oceanfront Effic, 2 double beds 2 room suite 3 double beds Oceanfront Suite 3 double beds Extra Person B C D E 1/1 - 7/3 75 85 105 120 140 5 8/3 30/3 125 135 155 175 200 8 31/3 - 31/5 85 115 130 150 5 1/6 -30/6 100 110 130 150 175 5 1/7 2/9 -1/9 -8/10 150 95 180 200 225 10 105 125 140 165 7 9/10 -1/12 85 95 115 130 5 2/12 -20/12 75 85 105 120 140 5 21/12 - 31/12 125 135 155 175 200 10 IMPORTANT: Please omit the dollar signs in all answers. Note: Suites have 3 beds. a. For the 9 time periods, what was the mean extra person rate? b. (i) This hotel has 20 type A rooms, 15 type B, 30 type C, 25 type D and the remainder are type E. If the hotel was fully booked (with no extra people…

Q.2: Mr. Ahmed is planning to recruit some additional sales staff for his company Al Khalif LLC. Since the sale varies from time to time, he decided to recruit staff if average sales is more than RO 35000. Following are the details of his company's sales for past 50 days. Sales 00- 10-20 20-30 30-40 40-50 50-60 60-70. 70- ('000RO) 10 80 No. of 05 07 10 05 08 05 05 05 days a) What would you suggest Mr. Ahmed regarding recruitment of sales staff? Give reason for your answer. b) What is the mode sale of the company? Why do you calculate mode sales?

Find out the next month after april income by using the forecasting method  of the moving average method

2.3 1/p; (1-P)/p².

Price information for selected foods for 2010 and 2018 is given in the table.    Price   Quantity Item 2010 2018   2010 2018 Cabbage (pound) $ 0.06   $ 0.05       2,000     1,500   Carrots (bunch)   0.10     0.12       200     200   Peas (quart)   0.20     0.18       400     500   Endive (bunch)   0.15     0.15       100     200     Compute a simple price index for each of the four items. Use 2010 as the base period. (Round your answers to 2 decimal places.)