uppose a student got an examination score of 90 in Statistics and Probability, where the mean was 75 and the standard deviation was 5 and a 92 in an English examination, where the mean was 95 and the standard deviation was 3. Which subject the student perform better?

Q: A manufacturer of automobile batteries claims that the distribution of the lengths of life of its be...

A: a) Define a random variable X, that is the length of life of automobile battery.

Q: A drum contains 4 black balls, 5 red balls and 6 green balls. If 5 balls are selected at random, fin...

A: Solution-: We have, number of black balls =4. Number of red balls =5, Number of green balls =6 Total...

Q: where H and NH in the table stand for Hypertension and Nonhypertension, respectively. If one of thes...

A: We have given that in an experiment to study the relationship of hypertension and smoking habits. To...

Q: totalNumberHW04POS bricks were examined for cracks. crackedNumberHW04P05 were found to be cracked. T...

A: P(cracked, discolored or both) = 1 - P(neither cracked nor discolored)                              ...

Q: QUESTION 11 Suppose a bowl of candy has 20 dark chocolate bars in it, 15 of which contain nuts, and ...

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Q: Suppose the true proportion of voters in the county who support a new fire district is 0.54. Conside...

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Q: Question 1: Discrete Sampling Distribution A box contains ten sealed envelopes numbered 1, . . . , 1...

A: Envelope 1 2 3 4 5 6 7 8 9 10 Amount in Envelop 0 0 0 5 5 5 5 5 10 10   $0 3 $5 5 $10 2

Q: 0.4 A 0.6 0.2 0.2 E 0.5 B. 0.8 F 0.3 0.6 E C 0.4

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Q: Construct a 98% confidence interval to estimate the population mean when x= 131 and s = 34 for the s...

A: We have given that  Sample mean = 131 Sample standard deviation s=34  

Q: TOPIC: PROBABILITY OF INDEPENDENT AND DEPENDENT EVENTS 3)A rental agency has 12 white cars, 8 gray ...

A: Followings are the Explanation of the question Number of White Cars: 12. Number of Gray Cars: 8. Num...

Q: The manager of a fleet of automobiles is testing two brands of radial tires and assigns one tire of ...

A: “Since you have posted a question with multiple sub-parts, we will solve first three sub-parts for y...

Q: An array of 30 LED bulbs is used in an automotive ight. The probability that a bulb is defective is ...

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Q: A simple random sample of 30 items resulted in a sample mean of 15. The population standard deviatio...

A: Givensample size(n)=30Mean(x)=15standard deviation(σ)=5

Q: One of the subjects, Racheal, has x = 60 and y = 52. (a) Calculate Racheal's predicted value, ŷ. (b)...

A: It is given that Regression equation : ŷ = 32 + 0.4x

Q: A card is drawn from a regular deck of 52 cards and is then put back in the deck. A second card is d...

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Q: One die is rolled. List the outcomes comprising the following events: (make sure you use the correct...

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Q: Question 2 In a management trainee program at a particular company, 68 percent of the trainees are f...

A: Given that                We have to find  a) Find the probability that a management trainee select...

Q: In Toronto, Canada, 55% of people pass the drivers' road test. suppose that 100 people take the test...

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Q: 2.A10-stop slot machine has one reel. It has the following number of symbols. Every stop has an equa...

A: First we have to generate the sample. We have to select 100 samples with replacement from the set, S...

Q: 44. A regression analysis yields the line ŷ = 32 + 0.4x. One of the subjects, Racheal, has a = 60 an...

A: Here AS per note I have calculated Q 44 Here use basic definition of Residual 

Q: In how many ways can 7 people line up to pay their electric bills? use permutation or combination in...

A: Given: n = 7  

Q: Write each as a single factorial. i) 56*6! i) (n + 3)(n + 2)(n + 1)! i) (n² + n)(n - 1)!

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Q: 30 teachers and students participate in a student-faculty basketball game as a fundraiser. They are ...

A: Given information:   Younger than 18 years old 18 to 30 years old More than 30 years old Stretc...

Q: A letter is first chosen at random from the word SAMPLE, and then the next letter is chosen at rando...

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Q: A normal probability table uses the standard normal curve to determine areas of probability by the u...

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Q: Clue is a board game in which you must deduce three details urrounding a rmurder. In the origirat ga...

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Q: pair of dice is rolled. What is the probability of getting a sum less than 8​?

A: When a pair of dice is rolled then the sample space is S= {(1,1),(1,2),(1,3),(1,4),(1,5),(1,6)      ...

Q: Problem 1.5: Assume 100 students in a class took a quiz and a midterm exams. The results were: 65 st...

A: Given that  Number of students =100  Number of students passed the quiz =65 Number of students passe...

Q: Suppose Z follows the standard normal distribution. Calculate the following probabilities using the ...

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Q: What is the probability that a batch of serum survives the first departmental inspection but is reje...

A: A manufacturer of a COVID-19 vaccine is concerned about the quality of its flu serum. Batches of ser...

Q: What is the probability that a green ball is selected from the first box?

A: Here use tree diagram 

Q: The values 25, 26, 25, 25, 25, 26, 39, 41, 90, 101 appear to follow a normal distribution. O True O ...

A: We have given that that data 25, 26, 25, 25, 25, 26, 39, 41, 90, 101. Here, we need to find out that...

Q: (D) 44. A regression analysis yields the line ŷ = 32 + 0.4x. One of the subjects, Racheal, has x = 6...

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Q: You hired Helen to manage your coffee shop. The profits that you obtain from the coffee shop depend ...

A: When profit= 1000 then total expected amount Helen get when she works hard , E(X) =1000*0.5 = 500  P...

Q: Given that P(A) = 0.2, P(B) 0.7, and P(A|B) 0.12. Then P(A B) 0.233 0.184 None of other options 0.20...

A: Let A and B are two events with P(A) = 0.2 , P(B) = 0.7, P(A/B) = 0.12 Then, We will find P(A'∩B') =...

Q: A. The Wildcats have won approximately 80% of their 20 basketball games this season. The Wildcats wo...

A: Given that, Wildcats have won approximately 80% of their 20 basketball games this season. The Wildca...

Q: Twelve officers of an organization are to be divided into committees. In how many ways can the offic...

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Q: write down the three possible values for the sum of the two variables, x+Y, and the probabilities of...

A: Let Z denotes the sum of X and Y i.e Z = X + Y

Q: A club has 35 members, 8 of whom are Civil Engineers. In how many ways can a committee of 4 be forme...

A:

Q: Your Chi-square analysis has shown that the Chi-square computed value is 0.32 and the Chi-square tab...

A: We have given that,  Chi- square analysis has shown that the chi- square computed value is 0.32 and ...

Q: TOPIC: CONDITIONAL PROBABILITY 7) One card is selected from a deck of cards find the probability th...

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Q: TOPIC: PROBABILITY OF INDEPENDENT AND DEPENDENT EVENTS 4) A toy box contains 12 toys. 8 stuffed ani...

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Q: | Suppose that a DJ has two (2) turntables and one (1) microphone. If the failure rate of a single t...

A: here you have posted many questions as all are different , I have calculated first main question    ...

Q: A teacher constructed a test in which the first part is composed of five true-or-false questions and...

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Q: The joint probability distribution of two random variables X, Y is given in the table below. Y=-3 Y=...

A: P(X≤-1, Y=3)=? P(X>3)=? P(X=-4)=?  

Q: A box contain 8 red and 6 green balls. In how many ways can 3 balls be drawn such that 2 is red and ...

A: GivenA box containNo.of red balls = 8No.of green balls = 6Total no.of balls = 14

Q: In how many ways can you choose 3 gifts from a bag containing 6 different gifts? O 21 O None of othe...

A: Given data,No of gifts=6No of gifts to be choosen is=3How many ways?

Q: In 1898, L. J. Bortkiewicz published a book entitled The Law of Small Numbers. He used data collecte...

A: GivenMean of 0.61 λ=0.61 in a yearLet "x" be the death in a corps in a yearx~Poisson(λ=0.61)P(X=x)=e...

Q: Byron is conducting an experiment to determine whether a new medication is effective in reducing cou...

A:

Q: QUESTION 12 A continuous random variable X has probability density function f(x)=6x^2-a for 0<x<1 an...

A: