If you could please help me with the following questions

8. [-l6 Points] | DETAILS I BBRIEFSTAT57.5.014. :l (c) Repeat part (a) What Is the probability that, on a single test, x is less than 3500? (Round your answer to four decimal places.) 0 The probability distribution of; is approximately normal with y; = 7200 and a; = 1697.06. 0 The probability distribution of)? ls approximately normal with y; = 7200 and a; = 2400. O The probability distribution of} ls approximately normal with y; = 7200 and a; = 1200.00. What is the probability of)?