Consider the following binomial experiment: a study in a certain community showed that 8% of the people suffer from insomnia. if there are 10,400 people in this community, what is the standard deviation of the number of people who suffer from insomnia?

27.67

Step-by-step explanation:

We know that the standard deviation for binomial distribution having parameter n (number of trails) and p (probability of getting succes in each trials) is

Given : The proportion of of the people suffer from insomnia. = 0.08

The number of people in community = 10,400

Then the standard deviation of  the number of people who suffer from insomnia will be :-

Hence, the standard deviation of the number of people who suffer from insomnia = 27.67

hi im bob : l

step-by-step explanation:

step-by-step explanation:

a cube has 6 sides

the probability of getting 5 on the first cube is 1/6 since only one side of the cube has 5 on it.

there are 3 sides of the cube with even number on it [2,4,6]

therefore the probability of getting even number is 3/6

for both events to happen together, the probability would be

1/6 x 3/6 = 12/36

which simplifies to 1/12