Question

4 decimals please.

The table above summarizes the grades of a previous STAT 2110 exam between a morning and afternoon section of the course.

	A	B	C	D	F	Total
Morning	21	26	17	14	10	88
Afternoon	23	25	15	22	12	97
Total	44	51	32	36	22	185

(Round all probabilities to four decimals)

a) If a student is from the afternoon section, what's the probability he or she earned an A?

b) The DF rate is reported to the Dean after each exam. (The DF rate is the percent of students who received a D or F). What number was reported to the Dean for this exam?

c) What's the probability of a student receiving a B and being in the morning section?

d) Receiving an A is (Click to select)dependent on being inindependent of being innot conditional on being indisjoint frommutually exclusive from the morning section.

Answer 1