# Question

For each situation, identify the sample size n, the probability of success p, and the number of successes x. When asked for the probability, state the answer in the form b(n, p, x). There is no need to give the numerical value of the probability. Assume the conditions for a binomial experiment are satisfied.

a. According to Bloomberg Businessweek, 1 out of 10 students who take remedial courses in community college graduate within 3 years. In a random sample of 20 community college students who have taken remedial courses, what is the probability that exactly 6 will graduate within 3 years?

b. Fifty percent of students entering community colleges are put in at least one remedial class. If we randomly select 20 students entering community college, what is the probability that 6 are put in at least one remedial class?

a. According to Bloomberg Businessweek, 1 out of 10 students who take remedial courses in community college graduate within 3 years. In a random sample of 20 community college students who have taken remedial courses, what is the probability that exactly 6 will graduate within 3 years?

b. Fifty percent of students entering community colleges are put in at least one remedial class. If we randomly select 20 students entering community college, what is the probability that 6 are put in at least one remedial class?

## Answer to relevant Questions

According to the Sydney Morning Herald, 40% of bicycles stolen in Holland are recovered. (In contrast, only 2% of bikes stolen in New York City are recovered.) Find the probability that, in a sample of 6 randomly selected ...When a certain type of thumbtack is flipped, the probability of its landing tip up (U) is 0.60 and the probability of its landing tip down (D) is 0.40. Now suppose we flip two such thumbtacks: one red, one blue. Make a list ...According to a Pew poll in 2012, 58% of high school seniors admit to texting while driving. Assume that we randomly sample two seniors of driving age. a. If a senior has texted while driving, record Y; if not, record N. List ...A study of human body temperatures using healthy men showed a mean of 98.1°F and a standard deviation of 0.70°F. Assume the temperatures are approximately normally distributed. a. Find the percentage of healthy men with ...You need to select a simple random sample of four from eight friends who will participate in a survey. Assume the friends are numbered 1, 2, 3, 4, 5, 6, 7, and 8. Select four friends, using the two lines of numbers in the ...Post your question

0