Block 101 got a mean of 87.5 with a standard deviation of 3.2 while Block 102 got a mean of 85.1 with a standard deviation of 4.5 in the Comprehensive Final Exam. What statistical measure will best describe the relative measure of dispersion of the two blocks? A mean B standard deviation © coefficient of variation D range

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A: Solution

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Q: Raul received a score of 77 on a history test for which the class mean was 70 with a standard…

A: for history test:mean(μh)=70standard deviation(σh)=4and xh=77For biology test:mean(μb)=70standard…

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A: We have given that  Database A: n1=40 , Mean=50,made up with an equal number of the values of 0 and…

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A: Given For John x1 = 12 and σ1 =3 Coefficient of variation, C.V1 =σ1x1…

Q: find 1.mean 2.standerd deviation

A:

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A: We first find the z score of 68 on the first test. z score=68-meansd=68-529=169   Let the score of…

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A: The provided information is  µ=94 σ=6 P(-a<X<a)=0.40…

Q: suppose data set A has a mean of 12 and a standard deviation of 2.5  Data set B has a mean of 12…

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Q: Why does Mean of the Deviations Not a Useful Measure?

A:

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Q: Kyle and Ryan take entrance exams at two different universities Kyle scores a 455 on an exam with a…

A: We can compare performance by comparing z-scores. The higher z-score indicates better performance…

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A: Given : For score 92  Test value, x = 92 population mean, μ = 71…

Q: If the professor grades on a curve​ (for example, the professor could give​ A's to the top​ 10% of…

A: The z-score for grade of 81 is, z=81-729=99=1 The z-score for grade of 75 is, z=75-674=84=2

Q: The class mean grade for Exam 1 is 62.4, with the standard deviation is 25.1 and received a score of…

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Q: Block 101 got a mean of 87.5 with a standard deviation of 3.2 while Block 102 got a mean of 85.1…

A:

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Q: The scores on two standardized tests are normally distributed. The first test had a mean of 58 and a…

A: The first test had a mean of 58 and a standard deviation of 10, and the second test had a mean of 80…

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

A: See the below solution

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A: Given : Old standard deviation = 14.50

Q: Database A contains 40 data items and is made up with an equal number of the values of 0 and 100 and…

A: Given that  Database A contains 40 data items and that is made up with an equal number of values of…

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A: According to the provided information, The mean and standard deviation of section M is  μ = 49σ =…

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Q: find standard deviation if range is 3.

A: Given: Range = 3

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Q: The mean grade for a chemistry exam was 76% with a standard deviation of 6%. The mean grade for a…

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Q: A student scores 80 in math which has a mean of 70 and standard deviation of 10. He also scores 85…

A: GivenStudent scores 80 in math with Mean(μ)=70standard deviation(σ)=10student scores 85 in english…

Q: The mean and standard deviation of 20 items was found to be 10 and 2 respectively. Later it was…

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Q: Based on daily measurements, Brenda's weight has a mean of 200 pounds with a standard deviation of…

A: We know that, Coefficient of variation = (SD/mean)*100 For Brenda Coefficient of variation =…

Q: Layla earned a score of 140 on Exam A that had a mean of 200 and a standard deviation of 50. She is…

A: Given :  Score on exam A = X = 140  mean of X =  200  standard deviation of X =  50. Score on exam B…

Q: Block 101 got a mean of 87.5 with a standard deviation of 3.2 while Block 102 got a mean of 85.1…

A: It is given that, the mean and standard deviation of Block 101 are 87.5 and 3.2, respectively and…

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A:

Q: if the average snowfall for ottawa ontario canada is 98 inches per year and the standard deviation…

A: Let x be the snowfall for Ottawa Ontario Canada which follows normal distribution with mean 98 and…

Q: Person A scores 78 on an exam that has a mean of 70 and a standard deviation of 5. Person B scores…

A: Given that.   X~N( μ , ?^2 )   Z-score =( x - μ )/?

Q: If the mean snowfall for Ottawa Ontario Canada is 98 inches per year and the standard deviation is…

A: Given,mean(μ)=98standard deviation(σ)=25

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Q: exam with µ = 52, a person has a score of X = 44. Which value for the standard deviation would give…

A: From the given information we find the solution.

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

A: Mean = 18 Standard deviation = 4

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

Q: 38 on Exam A that had a mean of 76 and a standard deviation of 20. He is about to take Exam B that…

A: for exam A x = 38 mean = 76 standard deviation = 20 P(X<38) = P(X<38-7620)…