Suppose the grades in a finite mathematics class are Normally distributed with a mean of 75 and a standard deviation of 5. What is the probability that a randomly selected student had a grade of at least 83? Select the correct response: 0.4452 O 0.0548 0.4542 O 0.0458

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A: Here use given information and draw venn diagram 

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Q: 21. Given the following tạble X -3 -2 -1 1 3 Total P(x) | 0.05 | 0.10 | 0.30 0 0.30 0.15 0.10 1 Comp...

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Q: 4. Use Descriptive Statistic tool on the Data Analysis to find the following: d. Standard Deviation ...

A: Data 88,85,60,75,63,55,78,90,86,40,62,83,46,78,90,62,40,47,55,52,63,76,85,87,63,62,51,48,76,72,88,72...

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A: here use given table sample space is set of all possible outcomes here outcomes as number of laptops...

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A: Let S be the sample space  E1 be the event for getting sum 5  E2 be the event getting sum 6  E3 be t...

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A: Let X be particular telephone number is used to receive both voice calls and fax messages from binom...

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Q: Q3- A discrete source generates five symbols with the following probabilities. Symbol S has probabil...

A: Given that, a discrete source generates five symbols with the following probabilities. Symbol S has ...

Q: (c) Students from School D and School B cannot be in the same row;

A: Here as per note I have calculated part C Here use inverse scenario That is consider total arrangeme...

Q: low cost.  Based on past drug testing, the FAA reports that drug use is estimated at 0.017 among pil...

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Q: va riance o 0.84 A Mean M 1.4 20% 30/p 40°p Stoje A 0.76 Store B 1.8 Store C ß Store which Store has...

A: We have given that the probability distribution of three different stores.     Note: According to Ba...

Q: 3. A researcher wants to estimate the average academic performance in Mathematics of grade 10 - Mabu...

A: We have given that,  The grades are :-   79, 80, 89, 87, 85, 88, 83 Then,  We will find the average ...

Q: A store va riance o 0.84 mean M 1.4 20% 30 /p 40°p 0. Stoje A Store B Store C ß Store which Store ha...

A: We have given that the probability distribution of three different stores.   Note: According to Bart...

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Q: Consider a binomial experiment with n = 20 and p = 0.70. a. Compute f(12) (to 4 decimals). b. Comput...

A: Given n=20 P=0.70 q=0.30

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Q: Suppose that the random variable z has a standard normal distribution. Sketch each of the following ...

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Q: Please answer all. Thank you. The width of a confidence interval for a proportion will be A.) wider ...

A: We have given the statement : The width of a confidence interval for a proportion will be A) wider  ...

Q: Algebra What is the value of p in the equation =p x ? 10 %3D 9.

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A: Given IBM utility function over money is u,(x) = √x Here, x is the amount of money

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Q: A firm's revenue, in $1000, is estimated by the equation R = 100 + 20A + X, where A, the advertiseme...

A: a. The sketch of relationship: A E(R|A) 0 100 1 120 2 140 3 160 4 180 5 200  

Q: 下riday Day of the Week no. of unit sol0 mon tue wed 4 Thu Sat dNT 3 Sunday 3.

A: Solution-: Let, X-be the number of unit sold We have following table: Day of the week X Monday ...

Q: Exercise 5.5 Suppose that X has a hypergeometric distribution with N = 500, n = 50, and K = 100. Fin...

A: GivenN=500n=50K=100x~Hypergeometric(N=500,n=50,K=100)P(X=x)=(Kx)(N-Kn-x)(Nn) ; x=0,1,...,n

Q: Sample size 9 whose data are given below is drawn from a population having a mean = 8 and standard d...

A: Solution-: We have,  n=9,μ=8,σ=5 To obtain the standard deviation of the sampling distribution=?

Q: A consumer products company is formulating a new shampoo and is interested in foam height (in millim...

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Q: Find the cumulative density function for the given probability density function. 1 f(x) = 7, for 2<x...

A: Given  cumulative density function for the given probability density function.

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A: Given Information: The average duration of calls is 1.5 minutes. The call request rate is 3 calls pe...

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Q: A coin is tossed three times. If X is a random variable giving the number of heads that arise, const...

A: We have given that a coin is tossed three times. The random variable X giving the number of heads.  ...

Q: A hat contains 10 gold coins, 10 silver coins and 10 copper coins. We randomly select four coins fro...

A: The correct answer is "Option E Same number of silver and copper coins are selected."

Q: 1. Suppose that X is a binomial random variable with n = 200 and p = 0.4. Find the probability PCX <...

A: Given: n = 200 p = 0.4    

Q: Please help I will give good rating 1. How many 3 or 4 digit even numbers greater than 700 can be f...

A: Given Digits are 2,3,5,6,8,9

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A: Let X be the random variable from normal distribution with mean (μ) = 19  standard deviation (σ) = 3...

Q: your latest customer survey you found that 44% of your rental car customers highly value flexible re...

A: We have given that  P(A)=44%=0.44 P(B)=35%=0.35 And P(A ∩ B)=24%=0.24 NOTE:- According to bartleby g...

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Q: Please answer all. Thank you. A national random sample of 20 NCAE Scores from 2010 is listed below. ...

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Q: 1. Determine the probability mass function of the number of passengers (X) who show up for the fligh...

A: Because all airline passengers do not show up for their reserved seat, an airline sells n = 125 tick...

Q: How many ways can Susan assign someone to buy​ beverages, someone to arrange for​ food, and someone ...

A: Here Given  Susan Has 9 Friends   (Vicki, Luis,​ Maddy, Hank, Rob, Sean, Marie, Roy, and Jeanne)