Question 47 Suppose for a binomial distribution, variance of the variable is 4. The probability of success is 3/4. Find the mean of this distribution and value of n.
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Q: About 77% of all female heart transplant patients will survive for at least 3 years. Eighty female…
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Q: Mean = 126 millimeters,variance = 64,if a random sample of 37 bolts is selected,what is the…
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Q: Question 6 The height of girls follows a normal distribution with mean u = 170 cm and the variance…
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Q: 4. In a sample, 77% of adults say they prefer to get their news online. Seventeen adults are…
A: Given that n=17
Q: The probability of a defective bolt is 2. Find (a) the mean and S.D. for the distribution of…
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Q: If n =41 and p=0.6 then the variance of the binomial distribution is
A: X~B(n,p)P(X=x)=nxpx(1-p)n-x x=0,1,2,3,...,nE(x)=mean=npvariance=np(1-p)
Q: find the probability that they have a mean pregnancy less than 265 days. find the probability that…
A: Let X denote the lengths of pregnancies. Given that X follows N(mean = 268, SD = 15) For the sample…
Q: Suppose that when a Honda dealership sells a Honda Accord, the profit the dealership makes is…
A: Given , Mean = 1200 , Sigma = 350 X ~ N(0,1)
Q: 1. If the random variable X from a distribution with mean 50 and variance 10 and y = 0.8x + 15. Find…
A: It is an important part of statistics. It is widely used.
Q: Question 17: A company produces steel rods. The lengths of the steel rods are normally distributed…
A: Given,sample size(n)=13mean(μ)=200.2standard deviation(σ)=0.9
Q: Determine the standard deviation of the probability distribution: 1 3 P(x) 0.48 0.27 0.19 06 Round…
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Q: For a binomial distribution, the mean is 6 and the standard deviation is 2. Write out all the terms…
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Q: The mean of a binomial distribution is 3 and variance is 3/2. Find the ility of (i) 0 success (ii) 2…
A: 5 Mean of binomial distribution is 3 Variance=3/2 That is, np=3np(1-p)=323(1-p)=321-p=12 p=12…
Q: The percentage of students passing exam is 20% (assume every student takes the test). You randomly…
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Q: assign numerical values to coin flips: Heads is +1 and Tails is –1, each with probability 1⁄2. After…
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Q: For a binomial distribution in which the probability of success is p = 0.5, the variance is twice…
A: Given that, Binomial distribution Probability of success, p = 0.5
Q: If the variance of the discrete random variable X = 36
A: Variance is 36
Q: 1-23. Let X be a normally distributed random variable with mean 410 and stan dard deviation 2. Find…
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Q: From past experience, a professor knows that the test score of a student taking her final…
A: Given that the mean is 75 and variance is 25 That is, μ=75σ=25=5
Q: Investigator A takes a random sample of 100 men age 18-24 in a community. Investigator B takes a…
A: We know that, the formula for the standard error is, Formula = standard error of…
Q: New York City typically has rain on about 16% of days in October. a. What is the probability that it…
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Q: d. The probability that a newborn fawn will be weigh between 2 and 3.1 is P(2 <x < 3.1) -
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Q: 23. The table at the top of the page lists the means and standard deviations of several different…
A: Part 1: We have, μ = 14, σ = 5 Thus, P(Y<9)=PY-μσ<9-145 =P(Z<-1)…
Q: The weights of steers in a herd are distributed normally. The variance is 40,000 and the mean steer…
A: Let "X" be the steers of weights in a herd
Q: a. What is the distribution of X?X - ? ✓ Please show the following answers to 4 decimal places. b.…
A: As per policy I have calculated 3 subparts kindly REPOST for remaining parts with note I need this…
Q: e it takes me to wash the dishes is uniformly distributed between 5 minutes and 11 minut the…
A: Consider, X be the time taken for the washing the dishes.Thus, we have X~U(5, 11).Here Lower, i.e,…
Q: Suppose that 70% of civil servants in South Africa are trade union members. Using the binomial…
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Q: 7. Compute the mean and standard deviation of the distribution in #5. andh
A: Given that n=11
Q: Suppose Y follows binomial with mean = 20 and variance =7, what is the values of the probability of…
A: Y~Binomial(n,p) Given , E(Y) = 20, Var(Y)=7 E(Y) = np 20=np n=20p Var(Y) = npq 7=npq Put n=20p in…
Q: A project's profit (in thousands), is a random variable with normal distribution. The variance equal…
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Q: The life of light bulbs is distributed normally. The variance of the lifetime is 225and the mean…
A: The probability of a bulb lasting for at most 540 hours is calculated below:
Q: The cost of 5 gallons of ice cream has a variance of 36 with a mean of 31 dollars during the summer.…
A: Given,sample size(n)=39standard deviation(σ)=36=6mean(μ)=31
Q: for the above i got the mean of 1, can you help me w the standard deviation and the variance
A: From the above parts Here we have Since, X ~ Binomial (n = 3 , p = 1/3) Therefore, n = 3 , p = 1/3…
Q: The weight of garbage produced per household per week has an average value of approximately 9.3…
A: Let X=The weight of garbage produced per household per week Given that mean= 9.3 and standard…
Q: Question 16: A company produces steel rods. The lengths of the steel rods are normally distributed…
A: given data, normal distributionμ=249.7σ=1.1n=18we have to find out the given probability.
Q: Questions 17- 19 A company produces rechargeable batteries for small size string trimmers. We define…
A: Given: μ=29.5 and σ=1.35. The z-score is calculated asz=x-μσ
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- Question 4 According to a study done by Pierce College JBLM, the height for Hawaiian adult males is normally distributed with an average of 66 inches and a standard deviation of 2.5 inches. Suppose one Hawaiian adult male is randomly chosen. Let X = height of the individual. Find the probability that the person is between 63.5 and 68.5 inches. Please explain how you derived this answerThe weights of steers in a herd are distributed normally. The variance is 10,000 and the mean steer weight is 1100lbs. Find the probability that the weight of a randomly selected steer is between 919 and 1180lbs. Round your answer to four decimal places.Give 5 problems of Binomial distribution and geometric distribution
- The life of light bulbs is distributed normally. The variance of the lifetime is 900 and the mean lifetime of a bulb is 550 hours. Find the probability of a bulb lasting for at least 583 hours. Round your answer to four decimal placesThe cost of 5 gallons of ice cream has a variance of 36 with a mean of 35 dollars during the summer. What is the probability that the sample mean would be less than 33.8 dollars if a sample of 96 5-gallon pails is randomly selected? Round your answer to four decimal places.Question 1 Let x be a continuous random variable that is normally distributed with a mean of 60 and astandard deviation of 9. Find the probability that x assumes a value between 55 to 75.
- The amount of liquid in a particular group of bottles is normally distributed. The mean is 1.95 L and the standard deviation is 0.15L. If a bottle is chosen at random, find the probability that the amount of water is between 1.88 L and 2.15 L Show all work as in the lessons. Paragraph B I U = I ***Assume that you have a random variable X which is binomially distributed, and someone told you that the mean of this variable is (6) and variance is (4.2). Find P(X=5).Suppose you did an experiment with 3 groups and 16 subjects per group. The sample variances in the three groups were 14, 16, and 18. Using Tukey's test to compare the means, what would be the two-tailed probability for a comparison of the first mean (14) with the last mean (18)?
- suppose the mean is 8 and 1/3 and the population variance is 6 and 8/9 and a>9 x 5 9 a frequency 3 f 2 a=? f=?Question 5 > About 62% of people who are murdered knew the person who committed the murder. Suppose that Detective Moore's case load currently has 50 unsolved murders. Use a normal distribution approximation to the binomial distribution to find the following probabilities: a. What is the probability that no more than 28 of the victims among Detective Moore's case files knew their murderer? b. What is the probability that between 28 and 34 of the victims knew their murderer?- Assume that you have a random variable X which is binomially distributed, and someone told you that the mean of this variable is (6) and variance is (4.2). Find P(X=5).