than 163.8 cm?2. Botany students are making research on the effects of an organic fertilizerin thegrowth of gumamela. On average, the height of a gumamela plant is227.5 cm with standard deviation of 51.4 cm. What is the probability thata random gumamela plant would grow up to 381.7 cm?O Screen capturewith ths

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Answered: 2. Botany studěnts are making research…

A First Course in Probability (10th Edition)

10th Edition

ISBN:9780134753119

Author:Sheldon Ross

Publisher:Sheldon Ross

Chapter1: Combinatorial Analysis

Section: Chapter Questions

Problem 1.1P: a. How many different 7-place license plates are possible if the first 2 places are for letters and...

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A chemical engineer processes 20 pilot batches and has the following active ingredient yield results. The batches have an average yield of 50.5 grams per litre with a standard deviation of 6.9 grams per litre. Find the probability of getting at least 50.5 grams per litre if the true mean yield is 52 grams per litre.
The Aluminum Association reports that the average American uses 56.8 pounds of aluminum in a year. A random sample of 51 households is monitored for one year to determine aluminum usage. If the population standard deviation of annual usage is 12.3 pounds, what is the probability that the sample mean will be more than 54 pounds 0.4484 0.9484 0.0516 0.8968 0.5516
The height of 10 year old females is normally distributed with a mean of 54.8 inches and a standard deviation of 2.74 inches. If a random 10 year old female is chosen at random, find the probability her height is between 53 inches and 57 inches.
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1) Assume that the heights of men are normally distributed with a mean of 69.8 inches and a standard deviation of 2.8 inches. If 64 men are randomly selected, find the probability that they have a mean height greater than 70.8 inches
Suppose that the body lengths of adult male crested porcupines in a certain region in the U.S. are normally distributed with a mean of 73.1 cm and a standard deviation of 5.8 cm. if an adult male crested porcupine is randomly selected from this region, what is the probability that its body length lies between 70 and 75 cm?
Based on tests of the Chevrolet Cobalt, the miles per gallon in highway driving are normally distributed with a mean of 32 mpg and a standard deviation of 3.5mpg. Suppose that 10 cobalt are randomly selected and the miles per gallon for each car recorded. What is the probability that the mean miles per gallon exceeds 34 mpg?
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The miles-per-gallon obtained by the 1995 model Z cars is normally distributed with a mean of 22 miles-per-gallon and a standard deviation of 5 miles-per-gallon. a. What is the probability that a car will get between 13.35 and 35.1 miles-per-gallon? b. What is the probability that a car will get more than 29.6 miles-per-gallon? c. What is the probability that a car will get less than 21 miles-per-gallon?
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In a semiconductor manufacturing company, the actual size of System on a Chip (SoC) chips is normally distributed with a mean of 7 nanometers and a standard deviation of 0.7 nanometers. A random sample of 15 SoC chips is taken. i. The SoC chips with a size bigger than 7.5 nanometers are rejected. Find the percentage of chips that will be rejected. ii. If the probability of the rejected SoC chip is 1.5% of the sample. What will be the mean size of the sampling SoC chip, ?̅ ?

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2. Botany studěnts are making research on the effects of an organic fertilizer in thegrowth of gumamela. On average, the height of a gumamela plant is 227.5 cm with standard deviation of 51.4 cm. What is the probability that a random gumamela plant would grow up to 381.7 cm? O Screen cap