Calculating Probabilities without Standard 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.





