Ten (10) HUMSS students were selected from the respondents. Assuming 
that the population standard deviation of the GWA of HUMSS students is 3.6752. 
4. What is the probability that their average grade is below 88? (2 points)
      A. 0.3483         B. 0.409           C. 0.6064         D. 0.6517
5. What is the probability form that describes the probability of number 4?
      A. P(X<88)       B. P(X>88)       C. P(𝑋̅<88)       D. P(𝑋̅>88)

A group of visitors consists of 15 students from the University of Oxford and 20 students from Leeds University. Among students from Oxford were 8 females and among the Leeds students were 5 females. A student was selected at random to give a vote of thanks at the of the visit. 

(a) What is the probability that the student is a female?

(b)Suppose that the female student is selected, what is the probability that the student comes from Leeds?

(c) Suppose that the student is selected is a female. What is the probability that the student comes from the University of Oxford?

A teacher has a class of 60 students taking the AP Statistics test. Assume that the average score of all students who took AP Statistics is 2.8 and the standard deviation is 1.3.

What is the probability that the average score of this teacher's class will be at least 3?