The average age of a CEO is 60 years. Assume the random variable is normally distributed. If the standard deviation is 4 years, use a graphing calculator to findthe probability that the age of a randomly selected CEO will be in the given range. Round your answers to 3 decimal places.Part: 0/2Part 1 of 2(a) Find the probability that the CEO is between 56 and 64 years old.If a CEO is selected at random, the probability that he or she will be between 56 and 64 years old isX

The data on the age of CEOs is distributed normally.Population mean, Population standard deviation,

Answered: The average age of a CEO is 60 years.…

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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Decide whether you can use the normal distribution to approximate the binomial distribution. If you can, use the normal distribution to approximate the indicated probabilities and sketch their graphs. If you cannot, explain why and use the binomial distribution to find the indicated probabilities. A survey of adults found that 6% say their favorite sport is auto racing. You randomly select 600 adults and ask them to name their favorite sport. Complete parts (a) through (d).
The weights of steers in a herd are distributed normally. The variance is 10,000 and the mean steer weight is 1100⁢lbs. Find the probability that the weight of a randomly selected steer is between 919 and 1180⁢lbs. Round your answer to four decimal places.
Decide whether you can use the normal distribution to approximate the binomial distribution. If you can, use the normal distribution to approximate the indicated probabilities and sketch their graphs. If you cannot, explain why and use the binomial distribution to find the indicated probabilities. A survey of adults found that 6% say their favorite sport is auto racing. You randomly select 600 adults and ask them to name their favorite sport. Complete parts (a) through (d). ..... Determine whether a normal distribution can be used to approximate the binomial distribution. Choose the correct answer below. O A. No, because nq <5. B. No, because np <5. OC. Yes, because both np 25 and nq 2 5. Click to select your answer and then click Check Answer. Clear All Final Check Get More Help - HIST Sor
Eighty-three percent of adults in a certain country believe that life on other planets is plausible. You randomly select five adults and ask them whether they believe that life on other planets is plausible. The random variable represents the number of adults who believe that life on other planets is plausible. Find the mean, variance, and standard deviation of the binomial distribution for the random variable. Interpret the results find the mean, variance, and standard deviation
answer part b only. it is not 29.665
Do question 2
The average amount of snow per season in Trafford is 45 inches. The standard deviation is 5 inches. Use a graphing calculator to find the probability that next year Trafford will receive the given amount of snowfall. Assume the random variable is normally distributed. Round your answers to 3 decimal places. Part: 0/2 Part 1 of 2 (a) Find the probability Trafford will receive at most 54 inches of snow. The probability that Trafford will receive at most 54 inches of snow is X
Cody took his first physics exam and scored an 80. The population mean for this exam is 70, and the standard deviation is 5. What is the probability of selecting a person with a score greater than Cody’s?
Decide whether you can use the normal distribution to approximate the binomial distribution. If you can, use the normal distribution to approximate the indicated probabilities and sketch their graphs. If you cannot, explain why and use the binomial distribution to find the indicated probabilities. A survey of adults found that 8% say their favorite sport is auto racing. You randomly select 400 adults and ask them to name their favorite sport. Complete parts (a) through (d). .... . Determine whether a normal distribution can be used to approximate the binomial distribution. Choose the correct answer below. A. No, because np < 5. B. No, because nq < 5. C. Yes, because both np 25 and nq 2 5. (a) Find the probability that the number of people who say auto racing is their favorite sport is at most 39. (Round to four decimal places as needed.)
The NJ Department of Health has reported the average life span of NJ residents is 81 years. If the standard deviation is σ = 4 years, what is the probability of a person living to at least 92 years of age?

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