A dataset of a class contains a variable that shows the school year of a student: freshman, sophomore, junior, or senior. You want to code the variable 1-4 by number of students in the group (from more to less). The dataset is currently ordered by student names alphabetically, show the steps of making the new variable.

Q: Find the probabilities of getting Three 3s and then a 4 or a 5 in 4 rolls of a balanced die

A: a) since probability of a head on a fair coin is 1/2 therefore due to independence of trials P(eight...

Q: 7 8 9 10 11 12 13 14 P(X) 0.03 k 0.15 0.20 0.19 2k 0.10 0.07 0.02 a. Find the probability that the n...

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Q: Box 1 (B1) has 3 Red and 4 Green balls, Box 2 (B2) has 4 Red and 5 Green balls. One of the boxes is ...

A: given that box1 has 3 red and 4 green balls box2 has 4 red and 5 green balls ( a )P(R)=? (b)P (B2/R)...

Q: Why should the sum of the probabilities in a probability distribution is always equal to 1? What is ...

A: *Answer:  

Q: How many distinguishable permutation can be made from the letters of the word MATH? Ɔ 12 ) 18 O 20 O...

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Q: a Find the probability that no calls will arrive in a) given 1-minute period. b) Find the probabilit...

A: Let X denote the number of calls arrive in every one minute period. Let Y denote the number of calls...

Q: The margin of error for the middle interval which captures 95% of the means from samples of size ? =...

A: Now consider the textbook expense of all IUPUI students.  The mean and variance of textbook expense ...

Q: The Weibull distribution is widely used in statistical problems relating to aging of solid insulatin...

A: Let X be a random variable representing the total hours of a lifetime of a specimen. So we can state...

Q: A manager chooses 2 months of the year during which to have training. What is the size of the sample...

A: A manager chooses 2 months of the year during which to have training. and we know, 12 month in a 1 y...

Q: You are incharge of rationing in a State affected by food shortage. The following reports were recei...

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Q: SupposeXhas a hypergeometric distribution with N= 100,n=4,and K= 20. Determine the following: Round ...

A: Hypergeometric distribution : Suppose randomly drawn n elements from set of N elements without repla...

Q: What is the probability that there are exactly 5 sightings within 5 months?   b. What is the mean ti...

A: here use poisson and exponential distribution The number of stork sightings on a route in South Caro...

Q: A boy owns 2 pairs of pants, 3 shirts, 8 ties, and 2 jacket. How many different outfits can he wear ...

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Q: Using Binomial Probability Distribution. Solve the problem below. A manager is keen to investigate ...

A: Givenp=0.40n=25Let "x" be the no.of employees smokex~Binomial(n=25,p=0.40)P(X=x)=(nx)×px×(1-p)n-x   ...

Q: What's More Grocery Items The probabilities that a customer will buy 1, 2, 3, 4 or 5 items in a groc...

A: Given data is Number of items X Probability P(X) X*P(X) 1 3/10   2 1/10   3 1/10   4 2/10...

Q: Use the formula for C, to evaluate the given expression. 9C4 3 C2

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Q: SITUATION 5 (a) In testing a certain kind of truck tire over a rugged terrain, it is found out that ...

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Q: Marketing estimates that a new instrument for the analysis of soil samples will be very successful, ...

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Q: : p(y-2|<10) p(z <2) =0.9772 y- N(2,25) 0.4594 0.5944 O 0.9544

A: It is known that, Z score= (y-mean)/standard deviation. Given that, Mean= 2 and variance= 25  So   s...

Q: A bag contains 30 balls numbered from 1 to 30. One ball is drawn at random. Find the probability tha...

A: We have  A bag contains 30 balls numbered from 1 to 30 then the sample space (S) is,  S= {1, 2, 3, 4...

Q: 6. The University of Montana ski team has 15 entrants in a men's downhill ski event. The coach would...

A: 6) The number of entrants in men’s downhill ski event is 15.

Q: If 3% of all cars fail the emissions inspection, find the probability that in a sample of 90 cars, ...

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Q: Q2. Which of these is the notation for the distribution of a normally distributed variable, x with m...

A: Solution-: We find the notation for the distribution of a normally distributed variable with mean μ ...

Q: Some middle school teachers have decided that the 8th grade needs a student committee. They need to ...

A: Given data, Total no of students n=22 No of students to be choosen to form a committee is r=5 What i...

Q: 4. Given u = 72, o = 6, n=45. 5. A population has mean 5.75 and standard deviation of 1.02. If a ran...

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Q: not equal, allowing the psychologists only to say that the three people are reporting different amou...

A: Kurtosis is a measure of whether the data are heavy-tailed or light-tailed relative to a normal dist...

Q: Over the years, a medical researcher has found that one out of every ten diabetic patients receiving...

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Q: Counting technique: There is a group of 6 men and 8 women. a) What is the probability to select a gr...

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Q: A study shows in a certain school that the average number of hours a student answers his/her module ...

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Q: 2. Suppose X has distribution function Fx(x) (1 - cos(x)) /2 0< <T and that Y = VX. What is the rang...

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Q: HbA1c levels were obtained from patients with diabetes mellitus in a certain clinic. A level that is...

A: We have given that  Sample size n =18 Population mean =7 Degree of freedom =df = n - 1

Q: What is the probability to get a sample average of 26 or more customers if the manager had not offer...

A: A small hair salon in Denver, Colorado, averages about 20 customers on weekdays with a standard devi...

Q: Evaluate P( 16, 3 ) O 4116 O 3360 O 48 O 13 A special plate number is made up of 2 letters of the vo...

A: As per our guidelines we are suppose to answer only one question. We know that P(n,r)=n!n-r!

Q: 4 A fair die is rolled. Let Y be the face value show ing, 1, 2, 3, 4, 5, or 6 with each having the p...

A: A fair die is rolled. Let Y be the face value showing, 1,2,3,4,5 or 6 with each having the probabili...

Q: A person chooses 2 different odd numbers at a time in a set containing the numbers from 3 to 9. If e...

A: Introduction: The set contains the numbers from 3 to 9, and it is understood that both 3 and 9 are i...

Q: For each of the questions in this section, first identify whether it is discrete or continuous and u...

A: Introduction: It is required to identify each question giving a discrete or continuous variable, and...

Q: A bowl of raffle tickets contains the numbers 1 through 70. What is the probability that a randomly ...

A: Here Given Total Number of tickets in Bowl = 70 Total Numbers between 1-70 divisible by 8 = 8 ( 8,16...

Q: 12. A bag contains 5 black and 7 white balls. A ball is drawn out of it and replaced in the båg. The...

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Q: In a factory producing parts for an electronic appliance, the length of a large  number of parts wer...

A: From the provided information, Mean (µ) = 3 Standard deviation (σ) = 0.05 X~N (3, 0.05) Here X be a ...

Q: Example 1. Given µ = 80, o = 20, n = 19. Find * , ºi and Example 2. Given u = -10, o = 5, n = 500, f...

A: 1)Givenμ=5.75σ=1.02n=81

Q: 2. Breast concer prevalence table (in loo,0005): be summarized as in the next can Female Male Sick D...

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Q: In a certain city, the daily consumption of water (in million liters) approximately follows a gamma ...

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Q: Some parts of California are particularly earthquake-prone. Suppose that in one metropolitan area, 3...

A: Note: Hi, thank you for the question. As per our company guideline we are supposed to answer only fi...

Q: A company uses a 'selling aptitude test' in the selection of salesmen. Past experience has shown tha...

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Q: 3. Given the following relative-frequency table for the probability distribution of X, what are the ...

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Q: 1) How many different 10 words can be formed using all the letters in the word REARRANGED? 2) How ma...

A: The number of ways in which n different objects can be arranged, is given by n!, where, n!=(n)·(n-1)...

Q: 6. A bag contains 6 red and 3 white balls. Four balls are drawn out one by one and not replaced. Wha...

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Q: Suppose that in the bookkeeping operation of a large corporation the probability of a recording erro...

A: Givenp=0.005n=1000Let "x" be the billings contain a errorx~Binomial(n=1000,p=0.005)P(X=x)=(nx)×px×(1...

Q: (b) A certain area of the Philippines is, on average, hit by 10 typhoons per year. (b.1) Find the pr...

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Q: 10. P(A) = 0.5 and P(A + B) = 0.7, find P(B) if – %3D (i) A and B are independent events; (đi) A and...

A: