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.

Calculate approximately to 3 decimal places the composite price index for all three stock between 2008 and 2011. A. 1.24B. 0.88C. 0.780D. 1.42

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

16. Table 3.15 shows the number of items (in thousands) produced from a factory pro- duction line during the course of a year. Taking the second quarter as the base quarter, calculate the associated index numbers. Suggest a possible reason for the fluctuations in output. Table 3.15 Quarter Q1 Q2 Q3 Q4 Output 13.5 1.4 2.5 10.5

5.51. An assessee depreciated the machinery of his factory by 10% each in the first two years by 40% in the third year and thereby claimed 21% average depreciation relief from taxation department, but the 1.T.O. objected and allowed only 20%. Show which of the two is right 1.1.

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.

The table below contains monthly share prices for Pfizer Inc. (PFE) and Astrazeneca Plc. (AZN). It also contains the monthly prices for the S&P 5000 index (S&PCOMP). Date Time  S&PCOMP PFE AZN 2/1/2019 0 2510.03 43.25 37.80 1/2/2019 1 2706.53 42.88 36.65 1/3/2019 2 2803.69 43.36 41.76 1/4/2019 3 2867.19 42.84 41.27 1/5/2019 4 2923.73 40.77 37.35 3/6/2019 5 2744.45 41.92 37.90 1/7/2019 6 2964.33 43.77 41.31 1/8/2019 7 2953.56 38.25 44.00 3/9/2019 8 2906.27 36.12 45.27 1/10/2019 9 2940.25 35.43 43.66 1/11/2019 10 3066.91 38.39 48.39 2/12/2019 11 3113.87 38.29 48.38 2/1/2020 12 3257.85 39.14 50.39 3/2/2020 13 3248.92 37.51 48.51 2/3/2020 14 3090.23 34.88 45.87 1/4/2020 15 2470.50 31.75 43.78 1/5/2020 16 2830.71 37.64 51.86 1/6/2020 17 3055.73 35.46 55.16 1/7/2020 18 3115.86 33.74 53.32 3/8/2020 19 3294.61 38.35 56.82 1/9/2020 20 3526.65 36.88 55.38 1/10/2020 21 3380.80 36.37 54.30 2/11/2020 22 3310.24 36.23 50.62 1/12/2020 23…

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