Yi = 5,25,50,100,200.
Q: Assume that the readings on the thermometers are normally idstributed with a mean of 0° and a…
A: Mean(µ) = 0Standard deviations (σ) = 1X ~ N (µ, σ )= N(0,1)
Q: Find the area of the shaded region. The graph to the right depicts IQ scores of adults, and those…
A: given data, normal distribution , μ=100σ=15we have to find out the shaded region for the given…
Q: Find the z-score for the value 62, when the mean is 56 and the standard deviation is 2. O A. z=3.00…
A: the PDF of normal distribution is = 1/σ * √2π * e ^ -(x-u)^2/ 2σ^2standard normal distribution is a…
Q: nd mean and standard deviation if n and p are 10 and 0.2 respectively.
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Q: Use the body temperatures, in degrees Fahrenheit, listed in the accompanying table. The range of the…
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Q: Find the z-score for the value 87, when the mean is 82 and the standard deviation is 8. A. z=−0.96…
A: Given,mean(μ)=82standard deviation(σ)=8and the value(x)=87
Q: The estimated standard deviation is°F. (Round to two decimal places as needed.) Compare the result…
A:
Q: e area of the shaded region. The graph to the right depicts IQ scores of adults, se scores are…
A: Population mean μ =100 Population standard deviation =15
Q: Find the indicated IQ score. The graph to the right depicts IQ scores of adults, and those scores…
A: X follows a Normal distribution with mean = 100 and S.D = 15 Then z=(x-mean)/SD = (x-100)/15…
Q: Assume that the readings on the thermometers are normally distributed with a mean of 0° and standard…
A:
Q: The area of the shaded region is
A: Consider X denotes the IQ score. X~Nμ=100,σ=15
Q: Find the area of the shaded region. The graph to the right depicts IQ scores of adults, and those…
A: Given that, Mean = 100 Standard deviation = 15 (Left tailed)
Q: If the normal length of eels is between 32 cm and 60 cm, what percentage of eels fall within this…
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Q: A sample of the number of sick days used by employees at a clinic is as indicated: 0, 0, 1,…
A: Given data 0,0,1,1,2,4
Q: Find the area of the shaded region. The graph to the right depicts IQ scores of adults, and those…
A:
Q: Find the indicated IQ score. The graph to the right depicts IQ scores of adults, and those scores…
A: We have given that The IQ scores are normally distributed with Mean(µ) = 100 and Standard…
Q: The average GPA at Torrance High School (THS) is 3.20 with a standard deviation of 0.2. Trevor…
A:
Q: Find the area of the shaded region. The graph to the right depicts IQ scores of adults, and those…
A: normal distribution μ = 100σ = 15 P(85<x<110) = ?
Q: Let x=70 be an element in a distribution with mean 65 and standard deviation 5. Which ones of the…
A: A normal distribution is a continuous distribution which has many real life applications. A standard…
Q: The average American man consumes 9.7 grams of sodium each day. Suppose that the sodium consumption…
A: Normal distribution, is a probability distribution that is symmetric about the mean, showing that…
Q: se the normal distribution of fish lengths for which the mean is 8 inches and the standard deviation…
A: Given,μ=8σ=2P(X>10)=?
Q: Assume that the readings on the thermometers are normally distributed with a mean of 0° and standard…
A: Let X denotes the random variable of the reading on the thermometers X~N(0,1) We have to find the…
Q: the average grade is 84 with a standard deviation of 4. What is each grade for -1 2 0 1.5 -1.25
A: Given Mean μ=84Standard deviation σ=4 The formula for Z score isZ=X-μσX=Z×σ+μ
Q: Assume that the readings at freezing on a batch of thermometers are normally distributed with a mean…
A: the PDF of normal distribution is = 1/σ * √2π * e ^ -(x-u)^2/ 2σ^2standard normal distribution is a…
Q: Assume that the readings at freezing on a batch of thermometers are normally distributed with a mean…
A: Given,mean(μ)=0standard deviation(σ)=1
Q: Here are the number of hours that each of a group of students studied for this exam: 2 4 22 2 1 4 1…
A: Solution Number of samples (n) = 10 Let "X" be the number of hours that each of a group of students…
Q: Assume that the readings at freezing on a batch of thermometers are normally distributed with a mean…
A: Given information- Population mean, µ = 0°C Population standard deviation, σ = 1°C Percentile :…
Q: cats is about 3 ounces. Assume that the distribution of birth weights is Normal with a standard…
A: Given that. X~N( μ , ?) μ=3 , ?=0.3 Z-score =( x - μ )/?
Q: Find the estimated mean speed
A: Given Information: Speed (mph) Cars 30-39 7 40-49 16 50-59 51 60-69 16 70-79 10 To…
Q: 1. A pair of fair dice is rolled, and the sum of their faces is recorded. The probabilities of each…
A: Standard deviation: The positive square root of mean squares of the deviation taken from the…
Q: mean and the standard deviation are 10 and 2 respectively. Find the arithmetic mean and the standard…
A:
Q: Find the area of the shaded region. The graph to the right depicts IQ scores of adults, and those…
A: Step 1:Given that :mean(μ)=100Standard deviation(σ)=15Let X is the IQ score of adults .We want the…
Q: Let X = number of miles a family travels for summer vacation. X follows a normal distribution with a…
A: From the given information,X follows a normal distribution with a mean of 311 miles and standard…
Q: Assume that the readings at freezing on a batch of thermometers are normally distributed with a mean…
A: Given that, The readings at freezing on a batch of thermometers are normally distributed with a mean…
Q: . A survey by the National Retail Federation found that women spend on average R146.on a Saturday…
A: given data normal distributionμ = 146σ = 29.44P(x<190)= ?
Q: Suppose 26% of all small businesses are owned by a particular group of people. In a random sample of…
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Q: Solve for the mean and the standard deviation of the following normally distributed set of data. a.…
A: We have given that Standard deviation below mean is 6.7 and standard deviation above the mean is 9.9
Q: find standard deviation if range is 3.
A: Given: Range = 3
For the given values , calculate the standard deviation . *
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- Assume that the readings at freezing on a bundle of thermometers are normally distributed with a mean of 0°C and a standard deviation of 1.00°C. A single thermometer is randomly selected and tested. Find P32, the 32-percentile. This is the temperature reading separating the bottom 32% from the top 68%.P32 = _______°CThe average American man consumes 9.5 grams of sodium each day. Suppose that the sodium consumption of American men is normally distributed with a standard deviation of 0.9 grams. Suppose an American man is randomly chosen. Let X = the amount of sodium consumed. Round all numeric answers to 4 decimal places where possible. The middle 10% of American men consume between what two weights of sodium?Low: High:Seattle, Washington, averages m=34 inches of annual precipitation. Assuming that the distribution of precipitation amounts to approximately normal with a standard deviation of a=6.5 inches, determine whether each of the following represents a fairly typical year, an extremely wet year, or an extremely dry year. a. Annual precipitation of 41.8 inches b. Annual precipitation of 49.6 inches c.
- The average number of acres burned by forest and range fires in Malibu is 6,300 acres per year, with a standard deviation of 1750 acres. The distribution of the number of acres burned is normal. Compute P(fewer than 7550 acres burned) = ?Assume that the readings at freezing on a batch of thermometers are normally distributed with a mean of 0°C and a standard deviation of 1.00°C. A single thermometer is randomly selected and tested. Find P25, the 25-percentile. This is the temperature reading separating the bottom 25% from the top 75%.P25 = °C(Round answer to three decimal places)You recorded the weekly distances you bicycled in miles and computed the standard deviation to be s = 2.3 miles. Your friend wants to know the standard deviation in kilometers. Given 1 mile ≈ 1.6 kilometers, what is the standard deviation in kilometers?
- Assume that the readings at freezing on a batch of thermometers are normally distributed with a mean of 0°C and a standard deviation of 1.00°C. A single thermometer is randomly selected and tested. Find P3, the 3-percentile. This is the temperature reading separating the bottom 3% from the top 97%.P3 = °CThe average number of kilos of meat a person consumes in a year is 105 kilos. Assume that the standard deviation is 12 kilos and the distribution is approximately normal. If a sample of 40 individuals is selected, find the probability that the mean of the sample will be 110 kilos or greater per year. Express your answer in percent form with 2 decimal places (with percent symbol - e.g. 10.00%)Assume that the readings at freezing on a batch of thermometers are normally distributed with a mean of 0°C and a standard deviation of 1.00°C. A single thermometer is randomly selected and tested. Find P61, the 61-percentile. This is the temperature reading separating the bottom 61% from the top 39%. P61 = (Round answer to three decimal places)
- Use the normal distribution of fish lengths for which the mean is 8 inches and the standard deviation is 2 inches. Assume the variable x is normally distributed. left parenthesis a right parenthesis If 400 fish are randomly selected, how many would you expect to be shorter than 6 inches?The average American man consumes 9.5 grams of sodium each day. Suppose that the sodium consumption of American men is normally distributed with a standard deviation of 0.9 grams. Suppose an American man is randomly chosen. Let X = the amount of sodium consumed. Round all numeric answers to 4 decimal places where possible. The middle 20% of American men consume between what two weights of sodium?Low: High:Jennifer needs to estimate the average age of vets in Houston. The standard deviation of ages is 17 years. She wants the standard error of her mean to be 0.3 years. How many vets is she going to need to sample to get at least that kind of accuracy?(be sure to round up)