77% of all students at a college still need to take another math class. If 43 students are randomly selected, find the probability that a. Exactly 30 of them need to take another math class.  b. At most 35 of them need to take another math class.  c. At least 33 of them need to take another math class.  d. Between 27 and 33 (including 27 and 33) of them need to take another math class.

65% of all students at a college still need to take another math class. If 43 students are randomly selected, find the probability thata. Exactly 26 of them need to take another math class. b. At most 31 of them need to take another math class. c. At least 29 of them need to take another math class. d. Between 22 and 29 (including 22 and 29) of them need to take another math class

A. If 6% of the population of grass in Kentucky is bluegrass, find the probability that in a sample of 150 acres, there are exactly 6 acres of Kentucky bluegrass. B. Find the probability that there are at most 2 acres of Kentucky bluegrass.

In a statistics class of 43 students, there were 15 men and  28 women. Five of the men and six of the women received an A in the course. A student is chosen at random from the class. 1. Find the probability that the student is a woman.2. Find the probability that the student received an A.3. Find the probability that the student is a woman or received an A.4. Find the probability that the student did not receive an A.