given a dataset of 60 values with the normal model N(71,5) approximately how many values should fall between 61 and71 for the normal model to apply

Answer 1

In a normal distribution, approximately 68% of the values fall within one standard deviation of the mean.

For the given normal model N(71,5), one standard deviation below the mean (71-5=66) and one standard deviation above the mean (71+5=76) would cover 68% of the values.

So, in a dataset of 60 values approximately 41 values should fall between 61 and 71 for the normal model to apply.