Answer the question based on the following situation:An honest coin is tossed 1600 times. The random variable X denotes the total number of heads that come up in the 1600 tosses.What are the chances that X is between 780 and 820?
A. approximately 95%
B. approximately 68%
C. approximately 34%
D. approximately 80%
E. none of these
Answer: B
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Find the second derivative.s = 
+ 8
A. 8t2 B. 16t + 8 C. 8t D. 16t
Find n(A) for the set.A = {x : x is a month in the year}
A. n(A) = 12 B. n(A) = 52 C. n(A) = 24 D. n(A) = 1
Provide an appropriate response.Divide 2074 by 4.
A. 518 R 2 B. 518 C. 517 R 6 D. 518 R 1
Solve the problem.A real estate agent agrees to sell an office building according to the following commission schedule: $27,000 plus 20% of the selling price in excess of $900,000. Assuming that the office building will sell at some price between $900,000 and $1,000,000, inclusive, over what range does the agent's commission vary?
A. The commission will vary between $27,000 and $47,000, inclusive. B. The commission will vary between $28,000 and$47,000, inclusive. C. The commission will vary between $207,000 and $227,000, inclusive. D. The commission will vary between $27,000 and $217,000, inclusive.