Question

# 1) Suppose a random variable, x, arises from a binomial experiment. Suppose n = 6, and...

1) Suppose a random variable, x, arises from a binomial experiment. Suppose n = 6, and p = 0.11.

Write the probability distribution. Round to six decimal places, if necessary.

 x P(x) 0 1 2 3 4 5 6

Find the mean.
μ =

Find the variance.
σ2 =

Find the standard deviation. Round to four decimal places, if necessary.
σ =

2) Suppose a random variable, x, arises from a binomial experiment. Suppose n = 10, and p = 0.81.

Write the probability distribution. Round to six decimal places, if necessary.

 x P(x) 0 1 2 3 4 5 6 7 8 9 10

Find the mean.
μ =

Find the variance.
σ2 =

Find the standard deviation. Round to four decimal places, if necessary.
σ =

3) Suppose a random variable, x, arises from a binomial experiment. Suppose n = 7, and p = 0.51.

Write the probability distribution. Round to six decimal places, if necessary.

 0 1 2 3 4 5 6 7

Find the mean.
μ =

Find the variance.
σ2 =

Find the standard deviation. Round to four decimal places, if necessary.
σ =

4) Approximately 10% of all people are left-handed. Consider a grouping of fifteen people.

Find the mean.
μ =

Find the variance.
σ2 =

Find the standard deviation. Round to four decimal places, if necessary.
σ =

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