Solve the problem.
-The probability of winning a certain lottery is 1/56,728. For people who play 517 times, find the standard deviation for the number of wins.
A)0.0955
B)0.1046
C)0.0091
D)2.1706

Question

Quizplus · Accepted Answer

The standard deviation for a binomial distribution is calculated using the formula √(n * p * (1-p)), where n is the number of trials and p is the probability of success. Here, n = 517 and p = 1/56,728. Plugging these values into the formula gives approximately 0.0955.

Solve the Problem. -The Probability of Winning a Certain Lottery Is 1/56,728. for Is