Question

The amount of time people spend exercising in a given week follows a normal distribution with a mean of 3.8 hours per week and a standard deviation of 0.8 hours per week.

i) Which of the following shows the shaded probability that a person picked at random exercises less than 2 hours per week?

a.    b.   


ii) What is the probability that a person picked at random exercises less than 2 hours per week? (round to 4 decimal places)    

iii) Which of the following shows the shaded probability that a person picked at random exercises between 2 and 4 hours per week?

a.     b.    


iv) What is the probability that a person picked at random exercises between 2 and 4 hours per week? (round to 4 decimal places)

Answer 1

Here graph is not provided even though i given 2 graphs according to X and Standard normal.

If you are still any doubt please send the graph in comment section.

Have a nice day.