of employees have surfed the internet at work.

Ten coworkers are selected at random.

Find the probability for the if the ten employees surfed internet at work.

This is a binomial experiment in which .

Therefore, and .

Find the propbability of each possible value for using Binomial probability formula. 

Make a table for the propbability distribution of .

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Graph:

Find the mean, variance and standard deviation.

Mean of a Binomial distribution is .

Substitute and in the formula.

.

Mean of the distribution is about .

On average out of 10 employees surfed internet at work.

Variance of a Binomial distribution is .

Substitute , and in the formula.

.

Variance of a Binomial distribution is .

Standard deviation of a Binomial distribution is .

Standard deviation is about .

Table:

Graph:

On average out of employees surfed internet at work.

Mean of the distribution is about .

Variance of a Binomial distribution is .

Standard deviation is about .