D webassign.net/web/Student/Assignment-Responses/submit?dep=25730305&tags=autosave#question2819841_4 7. [-/1 Points] DETAILS TANFIN 11 8.4.042. MY NOTES ASK YOUR TEACHER PRACTICE ANOTHER In a survey of 1147 small-business owners, the following question was posed: Would you recommend working with a significant other? Fifty-five percent of those polled answered in the affirmative, whereas 45% answered in the negative. Assuming that this result reflects the view of all small-business owners, what is the probability that at least 8 out of 10 small- business owners selected at random will opine that it would be unwise to work with the significant other? (Round your answer to four decimal places.) 8. [-/2 Points] DETAILS TANFIN11 8.4.057. MY NOTES ASK YOUR TEACHER PRACTICE ANOTHER A new drug has been found to be effective in treating 70% of the people afflicted by a certain disease. If the drug is administered to 900 people who have this disease, what are the mean and the standard deviation of the number of people for whom the drug can be expected to be effective? (Round your standard deviation to two decimal places.) mean people standard deviation people 9. [-/2 Points] DETAILS TANFIN 11 8.4.058. MY NOTES ASK YOUR TEACHER PRACTICE ANOTHER At a certain university, the probability that an entering freshman will graduate within 4 years is 0.6. An incoming freshmen class has 1700 students. (a) Find the expected number of students who will graduate within 4 years. students b) Find the standard deviation of the number of students who will graduate within 4 years. (Round your answer to two decimal places. ) students 5:52 AM EN NX Q .C50 5/3/2021 W SAMSUNG