Share
Explore BrainMass

Calculating Probabilities without Standard Deviation

I need some guidance in how to calculate probabilities without knowing the std deviation.

Population = 3005

calculate P(x-bar > 50.8) for sample size of n = 253

calculate P(x-bar > 50.6) for sample size of n = 134

calculate P(x-bar > 51) for sample size of n = 119

Then combine the two probabilities 51 and 50.6 into one using the concept of independent events.

Solution Summary

The solution calculates probabilities without standard deviation.

$2.19