15. [-l3.12 Points] DETAILS SAPCALCBR1 6.6.002. MY NOTES ASK YOUR TEACHER Let f(t) be the probability density function for the time it takes you to drive to school in the morning, where t is measured in minutes. Express the following probabilities as integrals. (If you need to use no or oo, enter INFINITY or INFINITY, respectively.) (a) The probability that you drive to school in less than 55 minutes 55 f f(t) db (b) The probability that it takes you more than half an hour to get to school I... UH f(t) dt UH . Viewing Saved Work Revert to Last Response Submit Answer 16. [-l3.2 Points] DETAILS SAPCALCBR1 6.6.012. MY NOTES ASK YOUR TEACHER According to the National Health Survey, the heights of adult males in the United States are normally distributed with mean 69.0 inches and standard deviation 2.8 inches. (a) What is the probability that an adult male chosen at random is between 67 and 71 inches tall? (Round your answer to three decimal places.) :l (b) What percentage of the adult male population is more than 6 feet tall? (Round your answer to one decimal place.) Submit Answer 7. [l3.12 Points] DETAILS SAPCALCBR1 6.3.010. MY NOTES ASK YOUR TEACHER Sterile fruit flies are used in an experiment where the proportion that survives at least t days is given by e'o-lst. If the experiment begins with 300 fruit flies, and flies are added at the rate of 6 per hour, how many flies are present 15 days after the start of the experiment? (Round your answer to the nearest integer.) insects Submit