Cholesterol levels in healthy U.S. adults average about 215 mg/dL with a standard deviation of 30 mg/dL and roughly Normally distributed.If you cholesterol levels of a sample of 42 healthy U.S. adults is taken, what is the probability that the mean cholesterol level of the sample

1)Will be no more than 215?

2)Will be between 205 and 225?

3)Will be less than 200?

4)Will be greater than 220?