In a population of 100 male fruit flies, the mean abdomen length is 2.0 mm and the standard deviation is 0.3 mm. If you assume that abdomen length follows a normal distribution, what percentage of male flies will have anabdomen length equal to or greater than 2.6 mm?

Q: When Tallulah runs the 400 meter dash, her finishing times are normally distributed with a mean of…

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Q: Of a large group of men 5 per cent are under 60 inches in height and 40 per cent are between 60 and…

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Q: A significant number of students completed a Statistics exam, and the final marks had a mean of 70…

A: Answer - A significant number of students completed a Statistics exam, and the final marks had a…

Q: if heights of 3rd graders follow a normal distribution with a mean of 52 inches and a standard…

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Q: For a population with mean 80 and standard deviation 6, what is the z-score corresponding to X = 68…

A: Given :Population mean u=80Standard deviation σ=6X=68

Q: In a normally distributed data set with a mean of 22 and a standard deviation of 4.1, what…

A: According to the given information, we know that The distribution is normal. Mean = 22 Standard…

Q: If the height of 1000 students in a University Campus closely follows a normal distribution with a…

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Q: If the variance of a distribution is 16, the standard deviation is?

A: Solution: From the given information, the variance of a distribution is 16.

Q: For a population with mean 90 and standard deviation 10, what is the z-score corresponding to X =…

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Q: A large company has many employees and the annual salaries of those employees follow a normal…

A: X follows a Normal distribution with mean = 70000 and S.D = 12000 Then z=(x-mean)/SD =…

Q: In a random sample of 48 people, the mean body mass index (BMI) was 28.3 and the standard deviation…

A: Given that Random sample size(n) =48 Mean body mass index (x¯)=28.3 Sample standard deviation (s)…

Q: the mean weight of a group of boys is 145 lb, with a standard deviation of 4lb. if the weights are…

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Q: If the mean exam score of a class was 75%, with a standard deviation of 15%,what percent of students…

A: Given,mean(μ)=0.75standard deviation(σ)=0.15

Q: Suppose that monthly rental rates for unfurnished one-bedroom apartment in Springfield are…

A: Let X denote the monthly rental rates for unfurnished one-bedroom apartment in Springfield are…

Q: Suppose the scores of students on an exam are normally distributed with a mean of 454 and a standard…

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Q: If a sample has a mean of 48 and a standard deviation of 3.2, what is the value in the set that…

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Q: Assume the salaries of elementary school teachers in the US are normally distributed with a mean of…

A: We bave to find given probability.

Q: If the number of degrees of freedom for a chi-square distribution is 28, what is the population mean…

A: It is known that for chi-square distribution: μχ2=degree of freedom   So,μχ2=28

Q: For a sample of 18 cars, you find the standard deviation of the price is 6150. What is the standard…

A: Given: Sample size=n=18,Standard deviation=σ=6150.

Q: The amount of time that people spend at Grover Hot Springs is normally distributed with a mean of 62…

A: Given: μ=62 minutesσ=18 minutes

Q: In 1970, adults who were 18 years or more had a mean systolic blood pressure (SBP) of 148 mm Hg.,…

A: Given that in 1970 adults who were 18 years or more had a mean systolic blood pressure (SBP) of 148…

Q: Suppose that the distance of fly balls hit to the outfield (in baseball) is normally distributed…

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Q: The heights of 18 year old men are normally distributed with a mean of 67 inches and a standard…

A: Given information- Population mean, µ = 67 inches Population standard deviation, σ = 3 inches We…

Q: In an intelligence exam to determine the IQ of students, it is found out that the results are…

A: Let X be the IQ score of students which follows normal distribution with mean 100 and standard…

Q: The students of a large university in Luzon were studied regarding their hours of sleep at night.…

A: As the distribution of the hours of sleep can be modeled as normal distribution with mean μ of 6.9…

Q: If you draw a sample of 200 from a normal distribution and using the Empirical Rule; how many data…

A: Given dataSample size(n) = 200In normal distribution, as per empirical formulaApplying empirical…

Q: In an all boys school, the heights of the student body are normally distributed with a mean of 71…

A: Solution: Let X be the height of the student boy. From the given information, X follows normal…

Q: The average income of a graduate from the University of Eastern West Virginia is $50,000 per year,…

A: X follows a Normal distribution with mean = 50000 and S.D = 2500 Then z=(x-mean)/SD =…

Q: If a population has a standard deviation σ , then the standard deviation of the mean of 100 randomly…

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Q: suppose the heights of 18-year-old men are approximately normally distributed, with mean 73 inches…

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Q: 4. Find the 60th percentile for the weight of 10-year-old girls given that the weight is normally…

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Q: Family income in a particular suburb has been found to be approximately normal with a mean of…

A: The random variable family income follows normal distribution. The population mean is $52,137. The…

Q: For a population with mean of 50 and a standard deviation of 8, what is the Z-score that corresponds…

A: Given:  population mean of random variable x is =50 and standard deviations=8  then find z score…

Q: The heights of adult men in America are normally distributed, with a mean of 69.3 inches and a…

A: Hey there! Thank you for posting the question. Since your question has more than 3 parts, we are…

Q: A standardized test has a mean of 50 and a standard deviation of 4. Which of the following is the…

A: The normal distribution  in the center are generally denser and basically less denser at tails.…

Q: the mean weight of a group of boys is 145 lb, with a standard deviation of 5lb. if the weights are…

A: We have to find correct answer..

Q: Assume the average amount of caffeine consumed daily by adults is normally distributed with a mean…

A: The detailed solution is as follows below:

Q: The hotel room rate in Miami, Florida is normally distributed with a mean of $286 per night. Assume…

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Q: For a recent 10k​ run, the finishers are normally distributed with mean of 56 minutes and a standard…

A: Given data,μ=56σ=13P(45<X<70)=?

Q: The exam scores of 200 students are distributed normally with a mean of 72 and a standard deviation…

A: Total students = 200 Standard deviation = 10 And distribute mean = 72 We have to find the number of…

Q: When samples of size 30 are collected from a normal population that has a mean of 200 and a standard…

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Q: If the average height of all women is 63.5 inches and the standard deviation is 2.5 inches,…

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Q: In what percentile is an infant’s body weight of 7 pounds, if infant body weights at that age are…

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Q: Given a mean of 75 and a standard deviation of 7, what percentage of scores are above 85?

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Q: The amount paid for a particular model car is normally distributed with a mean of $15,300 and a…

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Q: Suppose the distribution of heights of a group of 300 children is normal, with a mean of 150…

A: Consider the provided data, Number of children = 300 mean, μ=150standard deviation, σ=12 We need to…

Q: Suppose that the average height of men in the United States is approximately normally distributed…

A: From the provided information, Mean (µ) = 70 Standard deviation (σ) = 4 X~N (70, 4) Here X be a…

Q: height for adult males in the U.S is about 70 inches and the standard deviation is about 3 inches.…

A: Given: Mean, μ=70 Standard deviation, σ=3 X~N (μ, σ)X~N (70, 3) The formula of empirical rule is as…

Q: sample of 25 cappuccinos shows a mean of 42.1 oz of espresso and a standard deviation of 0.38 oz. A…

A: Given: Sample size, n = 25 Sample mean,  = 42.1 Standard deviation, s = 0.38

Estimation

A new framework of data analysis where the new statistical methods are used for interpreting the results and analyzing the data is known as estimation in statistics.