In the following problem, check that it is appropriate to use the normal approximation to the binomial. Then use the normal distribution to estimate the requested probabilities. It is known that 83%...

In the following problem, check that it is appropriate to use the normal approximation to the binomial. Then use the normal distribution to estimate the requested probabilities.


It is known that 83% of all new products introduced in grocery stores fail (are taken off the market) within 2 years. If a grocery store chain introduces 67 new products, find the following probabilities. (Round your answers to four decimal places.)

(c) within 2 years 15 or more succeed

(d) within 2 years fewer than 10 succeed