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…

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

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An economist wants to compare the economic growth rate (%) within 50 kilometers and 100 kilometers to cities in a country. He collected 6 cities of the country, and calculated the growth rates with 50km and 100km as shown in the following table. Choose an appropriate test to validate that regions within 100km have higher economic growth rate than the regions within 50km to cities. You can make certain assumptions, but need to write to indicate your assumption. Show calculations by hand.

B 6. 6. 6. 2 6. 8. C n(A) = n(ANC) = %! n(ANBN C^) =|

1 3rd. 3 Beth has $10.000 invested, part_at %o and the rest at 10 % per úear. The total yearhy interest was $j90. How much 7% $7,000, 10% $3,00) 'did' She inuest at each rate?