In a large metropolitan area, past records revealed that 30% of all the high school graduates go to college. from 20 graduates selected at random (n=20), what is the probability that exactly 8 will go to college?

0.1144

Step-by-step explanation:

Binomial probability formula :-

, P(X) is the probability of getting success in x trials , n is total n umber of trials and p is the probbaility of getting success in each trial.

Given : The proportion of high school graduates go to college : p=0.30

Sample size : n= 20

The probability that exactly 8 will go to college is given by :-

Hence, the probability that exactly 8 will go to college = 0.1144

step-by-step explanation: a reaction is first order. if the initial reactant concentration is 0.0200 m, and 25.0 days later the concentration is 6.25 x 10-4 m, then its half-life is:

equal to

step-by-step explanation: