6 Refer to Exhibit I The mean is a 2 b 3 c 4 d none of above 7 Refer to Exhibit

6 refer to exhibit i the mean is a 2 b 3 c 4 d none

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6. Refer to Exhibit I. The mean is a. 2b. 3c. 4d. none of aboveb.a.b.b. 7. Refer to Exhibit I. The median is 8. Refer to Exhibit I. The range is Exhibit IIMichael’s Compute-All, a national computer retailer, has kept a record of daily sales of laptopcomputers over a period of 200 days. Their sales record is summarized below:Number of Laptops SoldNumber of Days0-192020-394040-596060-794080-99409. Refer to Exhibit II. Thenumber of dayson which the company sold 39 or fewer laptops is 10. Refer to Exhibit II. Theproportion of dayson which the company sold between 40 and 59laptops is a. 0.2b. 0.3c. 0.4 d. 0.6 2
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±±²³11. The above figure is a Venn diagram showing three events (A,BandC) in the sample spaceS. EventBis a subset of eventA, while eventCoverlaps with bothAandB. Which ofthe following expressions correctly describes the event represented by the shaded area in theVenn diagram? ( denotes complement.) 12. Continuing the last question, if we know thatP(A) = 0.5,P(B) =P(C) = 0.15,P(AC) =0.10 andP(BC) = 0.05, what is the probability of the shaded area in the Venn diagram? 13. Consider eventsAandBsuch thatP(A) = 0 andP(B) = 0.Which of the followingstatements isfalse? a. IfAis any event, then 0P(A) 1.
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