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.
σ^{2} =
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.
σ^{2} =
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.
σ^{2} =
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.
σ^{2} =
Find the standard deviation. Round to four decimal places, if
necessary.
σ =
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