4. The following are the ages of working students in one of the fast food chains: 18, 20, 21, 18, 20, 18, 22, 24, 27, 25. Compute for the following: (Use the formula for ungrouped data) a mean b. median & mode

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A: The number of outcomes in the sample space is 16.

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A: Given: Data 8 10.5 14 20.7 55

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Q: m 1. As contracting officer for a company that manufactures lifters, you must decide whether to acce...

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Q: (a) 400 labourers were selected at random from a certain district. Their mean income was 140-5 dolla...

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Q: the couple plans to have 5 children   How many probable combinations will there be if the couple w...

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Q: Calculate median from the following data: 30-60 60-80 80-90 Marks 0-10 10-30 2 No. of Students 8 5 1...

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Q: Supposed a certain game is fair and costs $7 if you lose and has a net payoff of $10 if you win. The...

A:   Supposed a certain game is fair and costs $7 if you lose and has a net payoff of $10 if you win. T...

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Q: Consider the joint pmf p(X,y) and marginal pmfs p(x) and p(y) for two discrete random variables X an...

A: Required probability is P(X-Y=1)

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Q: We conduct a study to assess if there is the same variation in grades between engineering students a...

A: Solution: Given information: n1= 15 Sample size of psychology studentsn2=15 Sample size of engineeri...

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Q: A random sample of 460 ball bearings chosen at random from a very large consignment is found to have...

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Q: Let p be the population proportion for the following condition. Find the point estimates for p and q...

A: We have given that,  Favorable cases (X) = 2972 and sample size (n) = 4738 Then,  We will find the p...

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Q: 3. Given the following values: X1 = 4 Y1 = 3 Evaluate the following: a £ 5X; b. E Y,? & (E X{)² d. E...

A: GivenX1=4      X2=2       X3=3      X4=1Y1=3      Y2=4       Y3=2      Y4=5 

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A: X is normally distributed. and X~N(μ,σ)where  mean(μ)=500      and standard deviation(σ)=40find x? s...

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Q: Consider the following excerpt from an article: The average person spends $ 5000.00 on traditional C...

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A: P(Y=1)=?   

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Q: When comparing two population mean, failing to reject H, means that the two population means are equ...

A: It is given that H0 is not rejected. 

Q: A Mann-Whitney test is always a good idea for two population means test, if the populations are not ...

A: Solution-: A Mann-Whitney test is always a good idea for two population means test, if the populatio...

Q: In a frequency distribution, the coefficient of skewness based on quartiles is 0.5. If the sum of th...

A: GivenCoefficient of skewness = 0.5sum of the upper and lower quartiles = 28Median = 11

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A: Given that Yi, i=1, . . . ,n be independent Nβ0+yiβ1, σ2 and W1, . . . , Wm be independent Nγ0+wiγ1,...

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A: The mean is 10462 and the standard deviation is 2512.

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Q: Imagine we wanted to test whether there is a significant difference in midterm scores depending on w...

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A: The given data is already arranged in ascendingorder.sample size(n)=24

Q: The data below shows the SAT scores of 30 students  1561  1554  1536  1531  1523  1518  1515  1511 ...

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Q: You are given that mean = 50, coefficient of variation = 40% and coeffcient of skewness =-0.4. You a...

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Q: Suppose p(x,y)=xy^2/30, x = 1, 2, 3, y = 1, 2 is the joint pmf of X and Y. Determine P (Y = 2). a) 1...

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