What is the verbal SAT score such that only 16% of admitted students had a higher score?

Q: What's the standard deviation for the sample data set to 2 decimal places {6.65,10.82,15.83,20.76}

A: It is an important part of statistics. It is widely used.

Q: what will be the value of X at the z score =-3 given, mean=10 and standard deviation =2?

A: The z-score of a random variable X is defined as follows: z = (X – µ)/σ. Here, µ and σ  are the mean…

Q: Suppose that IQ scores have a bell-shaped distribution with a mean of 103 and a standard deviation…

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Q: What are the mean, standard deviation, relative standard deviation, median,and range for the numbers…

A: The mean is the average value of the data and it tells about the middle part of the data or…

Q: Suppose that the amount of time per day that American adults spend on their mobile devices is…

A: Let X denotes the amount of time (in minutes) per day that American adults spend on their mobile…

Q: A researcher developed a standardized test to measure anxiety so that the scores distribute normally…

A: Here we need to find the required proportion.

Q: Female cougar weights are normally distributed with mean=102 pounds and standard deviation= 13…

A: Answer:-  Given that, μ=102, σ=13

Q: The result of nationwide aptitude test in mathematics are normally distributed with mean=63 and…

A: Given : Mean (µ)=63 Standard deviation (σ)=5

Q: viatio

A: Mean = 97  SD = 12  Margin of error E= 3 We want to be 99% certain that we are within 3 IQ point of…

Q: The mean value of the scores in a Statistics exam was 85 with a standard deviation of 4. Find an…

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Q: Suppose that IQ scores have a bell-shaped distribution with a mean of 100 and a standard deviation…

A: The mean is 100 and the standard deviation is 15.

Q: The retirement age of National Football League (NFL) players is Normally distributed with a mean of…

A: Consider that the mean and standard deviation of a random variable X are µ and σ, respectively.…

Q: What is the standard deviation of a sample size of 100 from a population with a mean of 500 and…

A: Introduction The standard deviation of a sample of size 100 from a population with mean 500 and…

Q: 19. Score 92 or lower? 20. Score 92 or higher?

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Q: What is the corresponding z score, mean is 60, standard deviation is 8.1, X=72

A: We have to find z score.

Q: Assuming that the heights of college women are normally distributed with mean 64 inches and standard…

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Q: The length of human pregnancies from conception to birth approximates a normal distribution with a…

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Q: How do I interpret the 6 charcteristics of data when I am only given the mean, median, mode, and…

A: According to the provided information, mean, median, mode, and standard deviation are given.

Q: Assume that math test scores are normally distributed with a mean of 500 and a standard deviation of…

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Q: What is the probability that the mean overall physical activity level of the sample is greater than…

A: Let  X be the random variable from normal distribution with mean (μ) = 100, standard deviation (σ) =…

Q: Suppose that IQ scores have a bell-shaped distribution with a mean of 100 and a standard deviation…

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Q: verage annual expense of a middle-income household living in UK is 360,000 pound with a standard…

A: Given data, n=1500 μ=360000σ=4000 P(-z<Z<z)=0.93

Q: What is the Z-score o the 97 with standard deviation of 11.811 and a mean of 80.2?

A: What is the Z-score o the 97 with standard deviation of 11.811 and a mean of 80.2?…

Q: Suppose that IQ scores have a bell-shaped distribution with a mean of 100100 and a standard…

A: percentage of values greater than 145 = 0.15%  Explanation:Step 1: Define what the empirical rule…

Q: Suppose that IQ scores have a bell-shaped distribution with a mean of 100100 and a standard…

A: To find the percentage of IQ scores that are at least 52 using the empirical rule, we first need to…

Q: The results of a common standardized test used in psychology research is designed so that the…

A: Consider X be a random variable which follows normal distribution indicating the score earned on a…

Q: What is the value of z score ? Mean  =142 Standard devaition=2 X =140

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Q: The height of men is a normally distributed variable with a mean of 68 inches and a standard…

A: Mean(μ)=68Standard deviation(σ)=3

Q: Suppose that IQ scores have a bell-shaped distribution with a mean of 100100 and a standard…

A: Empirical rule: About 68% of data lies within the first standard deviation of the mean. About 95%…

Q: What is the area of proportion below a z-score of -.91? What is the area of proportion between the…

A: Z scores are given.

Q: In an entrance test for admission 900 students appeared. Their average marks were 50 and standard…

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Q: Suppose that IQ scores have a bell-shaped distribution with a mean of 101 and a standard deviation…

A: Given that Population mean=101 Standard deviation =14 Using the empirical rule, what percentage of…

Q: Suppose that IQ scores have a bell-shaped distribution with a mean of 103103 and a standard…

A: The percentage of IQ scores at least 58 is approximately 32%.Explanation:The empirical rule (also…

Q: based on this graph, would the median be greater than the mean? or the mean gretaer than the median?…

A: Here data is negatively(right) skewedmore data at higher end

Q: What percent of cases ARE NOT between the mean and 0.21 standard deviations above the mean?

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Q: Listed below are the amounts of net worth (in millions of dollars) of the ten wealthiest celebrities…

A: Given thatN=10 (t test)C.I=99% = 0.99.The samples are263 204 196 170 155 155 149 149 149 149

Q: A student will spend 15 hours average each week in class. If the standard deviation is 2 hours, what…

A: Given that mean=15 and standard deviation = 2 Let, X= number of hours spent by a student in the…

Q: What proportion of scores lie between 128 and 133 on a test with a mean of 125 and standard…

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