Question

compute the probability that the sample mean is within the 4 years of the population mean age.

Answer 1

Population mean=44.8
Then you have to find all samples whose mean values are between 44.8-4=40.8 and 44.8+4=48.8. Once you have identified them, add their probabilities

The samples that fulfill this requirement are samples 3 and 4, the sum of their probabilities is:0.2+0.1=0.3

Answer 2

THANK YOU!!

Answer 3

welcome, hope you got it right

Answer 4

i did.