Calculus and Above

Related Calculus and Above Questions
The average height of flowering cherry trees in a certain
The average height of flowering cherry trees in a certain nursery is 11.5 feet. If the heights are normally distributed with a standard deviation of 1.5 feet, find the probability that a tree is less … read more
Ashok Kumar
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Master's Degree
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The average age of doctors in a certain hospital is 50.0
The average age of doctors in a certain hospital is 50.0 years old. Suppose the distribution of ages is normal and has a standard deviation of 6.0 years. If 9 doctors are chosen at random for a commit… read more
Ashok Kumar
Electrical Engineer
Master's Degree
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The average hourly wage of workers at a fast food restaurant
The average hourly wage of workers at a fast food restaurant is \$6.75/hr. Assume the wages are normally distributed with a standard deviation of \$0.44. If a worker at this fast food restaurant is sele… read more
Ashok Kumar
Electrical Engineer
Master's Degree
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The mean weight of loads of rock is 47.0 tons with a
The mean weight of loads of rock is 47.0 tons with a standard deviation of 8.0 tons. If 24 loads are chosen at random for a weight check, find the probability that the mean weight of those loads is le… read more
Ashok Kumar
Electrical Engineer
Master's Degree
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The average age of vehicles registered in the United States
The average age of vehicles registered in the United States is 96 months. Assume the population is normally distributed with a standard deviation of 15 months. Find the probability that the mean age o… read more
Ashok Kumar
Electrical Engineer
Master's Degree
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The average gas mileage of a certain model car is 28.0 miles
The average gas mileage of a certain model car is 28.0 miles per gallon. If the gas mileages are normally distributed with a standard deviation of 0.4 miles per gallon, find the probability that a car… read more
Ashok Kumar
Electrical Engineer
Master's Degree
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Mrs. Smith's reading class can read an average of 175 words per minute with a standard deviation of 20 words per minute. The bottom 6% of the class is to receive a special training session. What is th… read more
Ashok Kumar
Electrical Engineer
Master's Degree
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Normal Distribution the average gas mileage of a certain
Normal Distributionthe average gas mileage of a certain model car is 28.0 miles per gallon. If the gas mileages are normally distributed with a standard deviation of 0.4 miles per gallon, find the pro… read more
Kofi
Ph.D.
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Normal Distribution the average gas mileage of a certain
Second opinion] Normal Distributionthe average gas mileage of a certain model car is 28.0 miles per gallon. If the gas mileages are normally distributed with a standard deviation of 0.4 miles per gall… read more
Keith Pelletier
Master's Degree
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The average length of a hospital stay for all diagnoses is
The average length of a hospital stay for all diagnoses is 4.8 days. If we assume that the lengths of hospital stays are normally distributed with a variance of 2.1, then standard deviation is 4 month… read more
R.R. Jha
Bachelor's Degree
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7. The average length of crocodiles in a swamp is 11.5 feet.
7. The average length of crocodiles in a swamp is 11.5 feet. If their lengths are normally distributed with standard deviation 1.7 feet, find the probability that a crocodile is more than 11 feet long… read more
Sandhya_sharma
Master's Degree
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The average age of doctors in a certain hospital is 50.0
The average age of doctors in a certain hospital is 50.0 years old. Suppose the distribution of ages is normal and has a standard deviation of 6.0 years. If 9 doctors are chosen at random for a commit… read more
Kofi
Ph.D.
713 satisfied customers
Let x represent the dollar amount spent on supermarket
Let x represent the dollar amount spent on supermarket impulse buying in a 10-minute (unplanned) shopping interval. Based on a certain article, the mean of the x distribution is about \$22 and the esti… read more
Sandhya_sharma
Master's Degree
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In a random sample of six microwave​ ovens, the mean repair
In a random sample of six microwave​ ovens, the mean repair cost was ​\$85.00 and the standard deviation was ​\$11.00. Assume the population is normally distributed and use a​ t-distribution to construc… read more
GLENN GILONGOS
Master of Mathematics
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1. Consider a population proportion p = 0.68. a-1. Calculate
1. Consider a population proportion p = 0.68. a-1. Calculate the expected value and the standard error of 1formula176.mml with n = 20. (Round intermediate calculations to 4 decimal places, "expected v… read more
SusanAthena
Master's Degree
Master's Degree
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4. The personnel office at a large electronics firm regularly
4. The personnel office at a large electronics firm regularly schedules job interviews and maintains records of the interviews. From the past records, they have found that the length of a first interv… read more
Ryan
Bachelor's Degree
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Z is a standard normal random variable. (i) Find P(Z<1.5) (ii)
Z is a standard normal random variable. (i) Find P(Z<1.5) (ii) Find P(-1… read more
Sandhya_sharma
Master's Degree
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TutoringCenter is closed today, and I need to check 9 out of
TutoringCenter is closed today, and I need to check 9 out of my 25 questions on a homework due tomorrow.. (1) The Average number of mosquitos in at stagnant pond is 80 per square meter with a standard… read more
Stevewh
Teacher
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