In the following problem check that it is appropriate to use the normal approximation to the binomial Then use the normal

Question

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 77 of all new products introduced in grocery stores fail are taken off the market within 2 years If a grocer store chain introduces 61 new products find the following probabilities Round your answers to four decimal places LUSE SALT a within 2 years 47 or more fail b within 2 years 58 or fewer fail c within 2 years 15 or more succeed d within 2 years fewer than 10 succeed

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