In a multiple-choice examination in Chemistry, students Mikasa and Jean received scores of 82 and 65, respectively. If these scores are equivalent to z-scores of 1.6 and – 0.2, respectively, what are the mean and standard deviation of the scores of all the students who took the examination in Chemistry?

Q: In a multiple-choice examination in Chemistry, students Mae and Julie received scores of 82 and 65,…

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

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A: IQR is obtained as the difference between the third and first quartiles.

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A: Given,           Z -score=4.45           A basket ball player has a height of  6 feet 9…

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A:

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A:

Q: The mean grade of adrian in the final examination in mathematics was 85 and the standard deviation…

A: The mean of a dataset is computed by μ=∑xn, where ∑x is sum of observations and n is the total…

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A: Introduction: Suppose there are k groups numbered 1, 2, 3, …, k – 1, and k.

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A: given data  Abby score x = 704 84th percentile σ = 141μ = ?

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Q: In a survey, 80% of the voters support a particular referendum.  If 30 voters are chosen, find the…

A: Number of voters(n)=30∵80% of the voters support a particular referendum i..e. p=0.80

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A: From the provided information, Boys got 78% on a test and girls got 84%. Let n = number of girls =…

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A:

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A: 1) Given that: Mean for mathematics = 85 Standard Deviation for mathematics = 7 Mean for science =…

Q: n which test did she perform better?

A: Here use standard normal variable Z for comparison  Here mean and standard deviation is from 200…

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A:

Q: A successful basketball player has a height of 6 feet 3 ​inches, or 191 cm. Based on statistics from…

A: Given,a basketball player has a height of 6 feet 3 inchesand the Z-score =2.31

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A:

Q: The mean grade of Adrian in the final examination in mathematics was 85 and the standard deviation…

A: For mathematics :mean(μ)=85standard deviation(σ)=7For sciencemean(μ)=89standard deviation(σ)=13

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A: Given,n1=40 , x¯1=89.5n2=24 , x¯2=78.3

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