(3pts)If a variable X has a binomial distribution with n -6, and p 0.4, which of

Question

(3pts)If a variable X has a binomial distribution with n -6, and p 0.4, which of the following is NOT correct? A. The population mean of X is 2.4 B. The population standard deviation of X is 1.2 C. The sample space of X is 1, 2, 3, 4, 5, and 6. D. The variable X is a discrete numerical variable. 4. (9pts)We learned about a new mathematical operation in this chapter (! Factorial). Calculate the following expressions containing factorials. (1) Find 0!, 1, 21, 31, 41, and 5!. 5. 61 6! 6! 4 (6) (5)4 10! 71 6 3) 66-6)! 5(7-5)! 210-2)

Explanation / Answer

4. The sample space of X is 0, 1, 2, 3, 4, 5 and 6.

Hence, Option (c) is the only incorrect statement. (Ans).

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