QUESTION 18 A balanced coin is tossed 5000 times. Find the variance of the number of...

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QUESTION 18 A balanced coin is tossed 5000 times. Find the variance of the number of heads that will be obtained. A. 12.5 B. 1000 C. 250 D. 1250 E. 353 PROBABILITY & STATISTICS FINA STAT 273 QUESTION 19 If n = 11, then P(-1.372 t 2.764) = A. 0.1 B. 0.11 C. 0.01 D. 0.89 E. 0.99 QUESTION 20 Assume that the Poisson distribution applies and that the mean number of hurricanes in a certain area is 6.5 per year. Find the probability that, in a year, there will be 4 hurricanes. A. 0.83 B. 0.9973 C. 0.112 D. 0.23 E. 0.601 QUESTION 18 A balanced coin is tossed 5000 times. Find the variance of the number of heads that will be obtained. A. 12.5 B. 1000 C. 250 D. 1250 E. 353 PROBABILITY & STATISTICS FINA STAT 273 QUESTION 19 If n = 11, then P(-1.372 t 2.764) = A. 0.1 B. 0.11 C. 0.01 D. 0.89 E. 0.99 QUESTION 20 Assume that the Poisson distribution applies and that the mean number of hurricanes in a certain area is 6.5 per year. Find the probability that, in a year, there will be 4 hurricanes. A. 0.83 B. 0.9973 C. 0.112 D. 0.23 E. 0.601