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- The number of chocolate chips in an 18-ounce bag of chocolate chip cookies is normally distributed with μ equals=1256 and σ equals=130 chips. What is the probability that a randomly selected bag contains between 866 and 1646 chocolate chips?We are picking 200 jelly beans out of a huge vat at a factory known to have 25% black jelly beans. Use the normal approximation to the binomial to find the probability that we get 60 or fewer black jelly beansThe time it takes me to wash the dishes is uniformly distributed between 7 minutes and 13 minutes.What is the probability that washing dishes tonight will take me between 9 and 10 minutes?Give your answer accurate to two decimal places.
- The time it takes me to wash the dishes is uniformly distributed between 12 minutes and 19 minutes.What is the probability that washing dishes tonight will take me between 13 and 18 minutes?Give your answer accurate to two decimal places.Johnnie is studying the rate of magnitude of a hurricane. She wants to calculate the probability that the magnitude of a hurricane is at least a 4.2. What is the distribution of the random variable X? Select one: O a. X" Pois(4.2) b. X" Bin(2, 1/3) с. X "Bin(3, 1/2) d. None of these e. X" Pois(2)If Y is a random variable from an exponential distribution with a mean of 5; what is the probability that Y is more than 7?
- If a seed is planted, it has a 61% chance of growing into a healthy plant. Let X be the number of seeds grow into healthy plants when 57 seeds are planted. What is the distribution of X? Please show the following answers to 4 decimal places. What is the probability that exactly 24 seeds grow into healthy plants? What is the probability that at most 24 seeds grow into healthy plants?The life of a semiconductor laser at a constant Power is normally distributeel with mean of 488 hours and a standard devication of 208 haurs what is the Probability that a laser life excceeds 588 hours 2 1iwhat is the Probability that a laser life fails before 418 hours? 1il:what is the life in hours that 95% of the laserrs exceed?5.
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