7:32 AM Mon Mastery Test #2 19 points possible 0/19 answered (9 1hr58mins X Progress saved Submit and End 15' . Question 17 81 pt '01 9 Details 4.2 Variance and Standard Deviation of a PDF Complete the table below to find the mean, variance and standard deviation. Round all values to 3 decimal places. le) (96 - 102 0.05 (av-H) | (w wipe) 0.05 0.2 0.7 Mean Variance u = 2 [WM 72 = z [(w mzpm] Find the standard deviation of this probability distribution. Standard Deviation a = > Next Question '3 23% @3| 7:32 AM Mon Mar 14 23% 03 myopenmath.com 4.3 Binomial Distribution 1hr58mins X Using the Binomial distribution, If n = 7 and p = 0.2, find P(X = 3) This translates to 3 successes and 4 failure(s) in 7 trials Round to 3 decimal places. Binomial Formula n! P ( X = k) = 7 K ! . ( n - k ) ! . ph . qn - k7:32 AM Mon Mar 14 23% 03 myopenmath.com 0 P(0) 1hr58mins X P(1) N P(2) W P(3) . . . . . . . . . . . . . . . . . 22 P(22 23 P(23) 24 P(24) Total Probability 1.00 Suppose she wanted to know the probably of winning at least once. Which of the following options would give the correct method for calculating this probability? O1-P(0) OP(2) OP(0) + P(1) + P(2) O1-P(0) - P(1) OP(1) OP(0) + P(1) > Next