Suppose that for a randomly selected high school student who has taken a college entrance exam, the probability of scoring above 650 is 0.30 . A random sample of n=9 students was selected. The probability that at exactly of the students scored over 650 points is found using:
([9],[2])(.3)^(2)(.7)^(7)=0.2668
Suppose that for a randomly selected high school student who has taken a college entrance exam,the probability of scoring above 650 is 0.30.A random sample of n=9 students was selected.The probability that at exactly lof the students scored over650 points is found using:
6 .3.70.2668 2