Excel and math | Mathematics homework help

If I enter =SUMPRODUCT(E1:F1, E2:F2) in cell G3, the result of the computation will be…

 

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60

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147

 

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41

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31

 

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An error, #NUM!

 

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Question 21 ptsSuppose cell H1 contains the variance of random variable Z.  What formula would you type in cell H2 to compute the standard deviation from the variance?

Suppose cell H1 contains the variance of random variable Z.  What formula would you type in cell H2 to compute the standard deviation from the variance?

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=H1*2

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=H1^2

 

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=STDEV(H1)

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=SQRT(H1)

 

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Question 31 ptsAssuming cell A1 contains the probability that an event <em>A</em> is to take place, what formula should be typed in cell A2 order to find the probability that the complement of <em>A</em> is to take place?<em><br></em>

Assuming cell A1 contains the probability that an event A is to take place, what formula should be typed in cell A2 order to find the probability that the complement ofA is to take place?

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=1-A1

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=A1+1

 

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=A1-1

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=1/A1

 

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Question 41 ptsSuppose the probability of a coin toss resulting in “heads” is 0.3.  What formula should be typed to compute the probability of having exactly 20 heads in 30 coin tosses?

Suppose the probability of a coin toss resulting in “heads” is 0.3.  What formula should be typed to compute the probability of having exactly 20 heads in 30 coin tosses?

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=BINOM.DIST(20,30,0.7,TRUE)

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=BINOM.DIST(30,20,0.7, TRUE)

 

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=BINOM.DIST(20,30,0.3,FALSE)

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=BINOM.INV(20,30,0.3,FALSE)

 

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Question 51 ptsSuppose the probability of selecting RED is 0.8.  What formula could be used to find the probability of selecting 5 or fewer REDs out of 12 trials?

Suppose the probability of selecting RED is 0.8.  What formula could be used to find the probability of selecting 5 or fewer REDs out of 12 trials?

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=BINOM.DIST(5,12,0.8,FALSE)

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=BINOM.DIST(5,12,0.8,TRUE)

 

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=BINOM.DIST(5,12,0.2,FALSE)

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=BINOM.DIST(12,5,0.2,TRUE)

 

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Question 61 ptsSkip to question text.

 

Given the above values how would one compute the mean of a binomial distribution in Excel?

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=B1*B2

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=B2/B1

 

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=B1+B2

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=B2^B1

 

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Question 71 ptsSkip to question text.

 

Given the above values, how would one compute the standard deviation of a binomial distribution in Excel?

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=B1*B2

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=B1*B2*(1-B2)

 

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=SQRT(B1*B2)

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=SQRT(B1*B2*(1-B2))

 

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Question 81 pts<p><img src=”https://www.homeworkmarket.com/assessment_questions/61059018/files/47847197/download?verifier=c24OZTrAbhdEye4lWFIeNVhOLCFHA8YoFVIfNxPt” alt=”3.jpg”></p> <p>Given the above values, how would one compute the probability of having more than 4 successes in Excel?</p>

 

Given the above values, how would one compute the probability of having more than 4 successes in Excel?

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=BINOM.DIST(B3,B1,B2,1)

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=1-BINOM.DIST(B3,B1,B2,1)

 

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=1-BINOM.DIST(B1,B3,B2,1)

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BINOM.DIST(B1,B3,B2,1)

 

 

 

 

 

Given the above image, how could one make use of those three quanities to find a z-score in Excel?

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=B1*B3-B2

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B1-B2/B3

 

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B2*B3-B1

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=(B1-B2)/B3

 

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Question 21 ptsWhich built-in Excel function could be used to find a z-score from a raw-score (i.e., an x-value), mean, and standard deviation?

Which built-in Excel function could be used to find a z-score from a raw-score (i.e., an x-value), mean, and standard deviation?

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STANDARDIZE

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Z

 

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ZSCORE

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NORMALIZE

 

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Question 31 ptsSkip to question text.

Suppose Xis normally distributed with mean μ=11.2 and standard deviation σ=2.1.  Which Excel function should be used to find ?

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=NORM.INV(9,11,2.1)

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=NORM.S.DIST(9,TRUE)

 

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=NORM.DIST(9,11.2,2.1,TRUE)

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=NORM.S.INV(9)

 

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Question 41 ptsSkip to question text.

Suppose X is normally distributed with mean 11 and standard deviation 1.  Which of the following gives the probability that 9.5&leq;X&leq;12.2?

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=NORM.DIST(12.2, 11, 1, TRUE) – NORM.DIST(9.5, 11, 1, TRUE)

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=(NORM.DIST(12.2, 11, 1, TRUE) – NORM.DIST(9.5, 11, 1, TRUE)) -1

 

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=1- (NORM.DIST(12.2, 11, 1, TRUE) – NORM.DIST(9.5, 11, 1, TRUE))

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=NORM.DIST(9.5, 11, 1, TRUE) – NORM.DIST(12.2, 11, 1, TRUE)

 

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Question 51 ptsHow would one find the z-score that cuts-off the upper 10% of the standard normal distribution in Excel?

How would one find the z-score that cuts-off the upper 10% of the standard normal distribution in Excel?

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=NORM.S.INV(0.1)

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=1-NORM.INV(0.1)

 

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=NORM.S.INV(0.9)

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=NORM.DIST(0.1)

 

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Question 61 ptsHow could one compute the probability between 1.5 standard deviations above and below the mean in Excel?

How could one compute the probability between 1.5 standard deviations above and below the mean in Excel?

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=NORM.S.DIST(1.5, TRUE)-NORM.S.DIST(-1.5,TRUE)

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=1-NORM.S.DIST(1.5, TRUE)+NORM.S.DIST(-1.5,TRUE)

 

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=ABS(NORM.S.DIST(1.5, TRUE))

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=1-(NORM.S.DIST(1.5, TRUE)-NORM.DIST(-1.5, TRUE))

 

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