2. In a quiz taken by 35 students, the score ranges of grade A+ is from 90 to 100. At least how many students must have the same score?

Q: It was found that 85% of the students graduated from a technical university are employed within 6…

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Q: 2. Answer the following below: i. In how many ways can 3 runners be selected from a group of 10…

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Q: The continuous random variable X has a the following probability density function: p(x) = ) - {²…

A: From the given information, px=2λ1-xλ, x≤λ a) Graph: Excel procedure Enter x and p(x)in Excel…

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Q: B. Construct grouped frequency distribution table using 5 classes/groups. * Follow the six steps in…

A: Number of classes = 5

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A: Given Total gender 113 Alpha=0.05

Q: 2. (i) Show that for a discrete dis.ribution B2> 1. (ii) Show that B2> B1

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Q: A probability mass function for a particular random variable y having nonnegative integer values is…

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Q: 5. A sample of size n = 16 is collected. The sample mean is û = 12 and the sample variance is ô² =…

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Q: 25. Let X and Y be continuous random variables with joint density function for 0 <x < y S 2 f(x, y)…

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Q: The personnel department of a particular company has observed that 20% of the people the company…

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Q: In how many ways can a committee of 6 members be formed from a group of 12 people consisting of 5…

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Q: Student # 1 Pre-test Post-test 1 Post-test 2 91 89 88 2 88 89 90 3 92 93 95 4 86 82 85 5 86 89 92 6…

A: Given the data of a class of ten students pre-test, post test 1 and post test 2 performance as…

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A: Mean is the  ratio of sum of observation to the number of observation  Median is the middle value…

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A: Since we do only up to three sub parts of a problem, we'll doing the first three sub parts only.…

Q: 1. If two balls are drawn from the box with replacement, compute (a, b, c, and d). 2. If two balls…

A: Probability = Favorable outcomes /total outcomes  Total =5 Red=3 White =2 We have to calculate…

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Q: spinner with 5 equally sized slices has 2 yellow slices, 2 red slices, and 1 blue slice. Raina spun…

A: Given Total number of spins=25

Q: In a city, airport A handles 50% of all airlines traffic, airport B handles 30% and airport C…

A: Given: airport A handles 50% of all airlines traffic airport B handles 30% of all airlines traffic…

Q: Show that if A, and A, are two events, then P(A)+P(A₂)−1≤P(44₂).

A: Given that, A1 and A2 are any two events. We know that, probability of any event is always lies…

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Q: The monthly advertising expenditure of the company is normally distributed with a standard deviation…

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Q: A friend who works in a big city owns two cars, one small and one large. One-quarter of the time he…

A: Given that, A friend who works in a big city owns two cars, one small and one large. One-quarter of…

Q: Using the table: The modal class of 50the percentile is Score Frequency 6 5 3 40-45 35-39 30-34…

A: Solution-: We fin find the modal class of the 50th percentile

Q: (a) a certain test tube contains 2 micro-organisms, (b) exactly 3 out of 5 test tubes contain 2…

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Q: rial for one year, 104 Grade 12 students at a particular high school were required to take at least…

A: From the previous solutions, the Venn Diagram is

Q: use, on average, less than 46 kilowatt hours?. Assume the population of kilowatt Homs to be normal.…

A: here,  given. population mean=μ=46 kilometers hours per year  sample mean=42 kilometer hours per…

Q: If X is the continuous random variable whose probability density function is f(x) = x/8 for 0≤x≤ 4 @…

A: * SOLUTION :-

Q: For the M/M/N/∞ system, the probability that an arrival will find all servers busy and will be…

A: Given information: PQ=P0·ρNN!·1-ρN

Q: A probability mass function for a particular random variable y having monnegative integer values is…

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Q: The probability 99% of ChatBot message send to customer are correct. If a sample of 100 massages is…

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Q: Let X and Y have the joint pdf, 0 < x < 1,0 < y < 1 f(2.9) = { 6, x + Y, f (x, y) = otherwise (a)…

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Q: (a) What is the probability that the card drawn is a nine? 0 (b) What is the probability that the…

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Q: A cereal company claims that 3 in every 25 people win a prize. What is the probability that you…

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Q: 30% of all cars undergoing a headlight inspection failed the inspection by JPJ and a random sample…

A: Givenp=30%=0.30n=400x~Binomial(n=400,p=0.30)P(X=x)=(nx)×px×(1-p)n-x   ; x=0,1,...,n

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A: Given that  X be the uniform distribution (0,1)  Then we have to find the probability density…

Q: Three switches connected in parallel operate independently. Each switch remains closed with…

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Q: Jensen, arriving at a bus stop, just misses the bus. Suppose that he decides to walk if the (next)…

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Q: Ruben is packing school lunches for his two daughters. In his fruit bowl, he has 4 red apples, 2…

A: Given that, Ruben is packing school lunches for his two daughters. In his fruit bowl, he has 4 red…

Q: 3. The alkalinity level of water specimens collected from a certain river is approximately…

A: Given,sample size(n)=20mean(μ)=50standard deviation(σ)=2.5

Q: 1. According to a researcher's data, about 63% of all of San Diego has taken at least 1 dance class.…

A: Given P=0.63 n=300

Q: What is the optimal time for a scuba diver to be on the bottom of the ocean? That depends on the…

A: Given data: x 15.1 26.3 32.2 38.3 51.3 20.5 22.7 y 2.48 2.38 1.68 1.03 0.75 2.38 2.20