Use Chebyshev's Theorem to find what percent of the values will fall between 120 and 150 for a data set with a mean of 135 and standard deviation of 7.5. *

Q: The body temperatures of adults are normally distributed with a mean of 98.60 and a standard…

A: Given data Mean = 98.60 Standard deviation = 0.73 Probability = 0.85

Q: an exam score has a mean of 506 and a standard deviation of 100. What exam score corresponds to a…

A: μ  = 506 , σ = 100  Z~ N(0,1)

Q: A normally distributed data set has a mean of 0 and a standard deviation of 2. What is the percent…

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Q: The mean annual automobile insurance premium is $950, with a standard deviation of $175. The data…

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Q: A data set is normally distributed with a mean of 67 and a standard deviation of 12. What percent of…

A: Normal distribution is a continuous distribution which has many real life applications. Normal curve…

Q: The mean of a normal disiribution is 50 and standard deviation is 12.5. Calculate the 60th, 65th and…

A: Given,mean(μ)=50standard deviation(σ)=12.5

Q: Assume that the number of pieces per bag has a mean of 264 with a standard deviation of 3. use the…

A: Given :  the number of pieces per bag has a mean of , μ=264  a standard deviation of , σ =3   We…

Q: The lengths of brook trout caught in a certain Colorado stream are normally distributed with a mean…

A: Given that :  Mean = 14 inches S. D = 3 inches Here we use standard normal distribution concept…

Q: The distribution of the cost of a family’s dine-out meal has a mean of $55.30 and a standard…

A: Given ,Mean μ=$55.30Standard deviation σ=$4.00

Q: Let us suppose that the amount of bread consumed by adult Americans per day can be modeled by a…

A: Given: Mean(μ)  = 32 oz Standard deviation (σ) = 13.3 oz

Q: A normally distributed data set has a mean of 0 and a standard deviation of 2. What is the percent…

A: Introduction: The fashionable regular distribution, additionally called the z-distribution, is a…

Q: A normally distributed set of data has been generated where 50% of the data lies below 97 and 70%…

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Q: The grades on a recent test were 89, 72, 100, 87, 65, 98, 77, and 92. 1. Calculate the standard…

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Q: The mean gas mileage for a hybrid car is 57 miles per gallon. Suppose that the gasoline mileage is…

A:

Q: A. Prepare a table of values and calculate an estimate for the mean and standard deviation. please…

A: Answer:-

Q: Determine the number of standard deviations from the mean (z-score). In the United States, the…

A: Given mean female height = 64 inches and standard devaiton = 3 inches.The distance of a data point…

Q: lies

A: Let X be the random variable such that the  daily water usage per person in Quezon City. The daily…

Q: Hogie lizards have tail lengths that are normally distributed with a mean of 22.5 cm and a standard…

A:

Q: A set of wrist watch prices are normally distributed with a mean of 76dollars and a standard…

A: From the provided information, Mean (µ) = 76 Standard deviation (σ) = 10 X~N (76, 10) Here X be a…

Q: The lengths of the Atlantic croaker fish are normally distributed with a mean of 10 inches and a…

A:

Q: A particular leg bone for dinosaur fossils has a mean length of 5 feet with a standard deviation of…

A: Given, A particular leg bone for dinosaur fossils has a mean length of 5 feet with a standard…

Q: It is possible to have a standard deviation of -1 for some data set? True or False

A: See the below solution

Q: The mean of a normal set of data is -5.4 and the standard Deviation is 22.5 sketch a normal curve…

A: We have to plot a Normal curve with the given data  , Mean = -5.4 standard deviation = 22.5.

Q: Chebyshev's Theorem states that the percentage of measurements in a data set that fall within three…

A: The Chebyshev's theorem provides bounds on the probability for distributions for which mean and…

Q: Explain an important difference between the standard deviation and the mean.

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Q: A survey by the National Retail Federation found that women spend on average $146.21 for Christmas.…

A: Given: μ=$146.21, σ=$29.44

Q: The mean height of women is 62 inches with standard deviation of 4 inches. What percent of women are…

A: From the given information, Mean height (µ) = 62 inches Standard deviation (σ)= 4 inches Thus, the…

Q: The mean height of women is 62 inches with standard deviation of 4 inches. What percent of women are…

A: If a random variable x has a distribution with mean µ and standard deviation σ, then the z-score is…

Q: The data in a data set are normally distributed with a mean of 190 and a standard deviation of 30.…

A: ∗Mean μ=190    standard  deviation σ=30    X~N 190,30 we need to find,   PX<130+PX>250=P…

Q: The standard deviation on a final examination was 9, while the mean grade was 72. The best 14% of…

A: GivenMean(μ)=72standard deviation(σ)=9

Q: The data in a data set are normally distributed with a mean of 190 and a standard deviation of 20.…

A: Given information Mean µ = 190 Standard deviation σ = 20

Q: A line for tickets to a broadway show had a mean waiting time of 20 minutes with a statistic…

A: Given, Mean = μ = 20Standard deviation = σ = 4       To find, P (X > 28) = ?

Q: The lengths of pregnancies in a small rural village are Normally distributed with a mean of 265 days…

A: Obtain the standard z-score for the random variable X equals 239 days. The standard z-score for the…

Q: The distribution for the time a patient of a medical center spends waiting for an appointment is…

A: Solution: Let X be the time a patient of a medical center spends waiting for an appointment. From…

Q: Scientists find that a particular species of caterpillar has a mean mass of 32 grams with a standard…

A:

Q: Given a distribution with a mean of 117 and standard deviation of 42. find a value with a 7-score of…

A:

Q: Books in the library are found to have an average length of 350 pages with a standard deviation of…

A: Given that, Books in the library are found to have an average length of 350 pages with a standard…

Q: A normally distributed data set has a mean of 0 and a standard deviation of 2. What is the percent…

A: Here I am providing my handwritten solution

Q: A standardized memory test has a mean of μ = 100 and a standard deviation of σ= 10. What percent of…

A: Let X be the score in the memory test which follows normal distribution with mean 100 and standard…

Q: A quantitative data set has a size 50. At least how many observations lie within 3 standard…

A: Suppose X is a random variable with expectation, μ and standard deviation, σ. Then, for any positive…

Q: The mean gas mileage for a hybrid car is 57 miles per gallon. Suppose that the gasoline mileage is…

A:

Q: The daily water usage per person in Davao City is normally distributed with a mean of 18 gallons and…

A: Given information: Let X be the random variable denoting the daily water usage per person in Davao…

Q: The distribution of heights of adult American men is approximately normal with a mean of 69 inches…

A: Let, X=the heights of adult American men Given that X follows a normal distribution with mean=69 and…

Q: The data in a data set are normally distributed with a mean of 150 and a standard deviation of 30.…

A: In this problem, we are going to using The empirical rule(68-95-99.7 Rule)

Q: A normally distributed data set has a mean of O and a standard deviation of 2. What is the percent…

A:

Q: The average price of a personal computer is $949. If the computer distributed with a standard…

A:

Q: A set of laptop prices are normally distributed with a mean of $750 and a standard deviation of $60.…

A: To Determine: A set of laptop prices are normally distributed with a mean of $750 and a standard…

Q: Based on the relationship between the mean, standard deviation, and minimum time, is it reasonable…

A: HERE WE CAN USE THAT minimum value is approx 3 times standard deviation away from mean.

Q: percentile

A: From the standard normal table we have to find z-value of 85% confidence interval (z)=1.440 Mean(u)…

Q: A class of 150 students took a final examination in science. The mean score was 72% and the standard…

A: