The random variable X has a binomial distribution with n= 20 and p = 0.01. What is the meam and Variance of X? 0.2 and 0.198 2 and 198 0.1 and 0.099 None

Q: Suppose that X is a normal random variable with a standard deviation of a =8. Ifwe know that Pr[X >…

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Q: ind the variance and the standard deviation for x and y in Table 1

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Q: The length of pregnancies in giraffes is normally distributed with a mean length of 430 days and a…

A: Here, the mean length of pregnancy is 430 days and the standard deviation is 9 days.

Q: Find the mean, variance, and standard deviation of the binomial distribution with the given values…

A: Obtain the value of the mean. The value of the mean is obtained below: Let X denotes the random…

Q: Find a value X0 of the random variable X that satisfies the following probability. P(X > X0)=0.025

A: here mean = 46 standard deviation = 5

Q: A random sample of size 16 was collected which gave the sample mean of 7 and a sample variance of…

A: Given that the population mean is unknown i.e. μ. The population variance is σ2=8. The sample mean…

Q: Assume that the random variable X is normally distributed with mean = 62.6 and standard deviation =…

A: Given:- X is normally distributed. mean μ = 62.6 standard deviation = 2.88n = 25 we have to find…

Q: Sample X has a size of 6 and a variance of 2.3. Sample Y has a size of 10 and a variance of 0.6.…

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Q: If Y follows binomial distribution with mean 4 and variance 2. Find P(Y > 1) 0.9610 0.9861 None…

A: Given data Mean μ = np = 4 Variance ?2 = np(1-p) = 2 = 4(1-p) = 2 1 – p = ½ p = ½ np = 4 = ½ × n =…

Q: If X be a normally distributed random variable with variance of 121 such that P(X > 35) = 0.0212,…

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Q: For a binomial distribution, mean = 4 and variance 4/3. Then the value of p is

A: For a binomial distribution ,                                            Mean       = n×p…

Q: For a random variable X with standard deviation 5, Variance of 2x + 4 is Question 4Select one: a.…

A: Answer is in the explanation box.Explanation:

Q: Suppose X takes the value 1 with probability P, and the value 0 with probability (1-P). The…

A: Variance formula is:

Q: A random variable X follows a normal distribution with mean μ = 100 and standard deviation σ = 20.…

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Q: Exercise 1.3. A normally distributed random variable has a mean of 449: a. If a score of 325 has a…

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Q: Suppose X is a normally distributed random variable with mean = 46 and st.deviation = 5 . Find a…

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Q: A Gamma random variable has mean of 5.4 and variance of 16.2. Find the parameters of this…

A: The mean of a Gamma distribution is The variance of a Gamma distribution is

Q: Let X be a binomial distribution with n = 30 and p = .6 then the variance is

A: The variable of interest is x.

Q: Suppose we are given a sample of 60 observations from a distribution whose mean is O and variance is…

A: The mean is 0 and the variance is 3/5.

Q: i n =49 and p=0.6 then the variance of the binomial distribution is а. у 29.40 O b. 0.90 О с. 58.80…

A: We have to find variance..

Q: - If the random variable X from a distribution with mean 70 and variance 9 find the mean and…

A: Given :-   EX = 70VarX = 9And ,   Y =-2X+5and , Z=X-703   we have to find EY , VarY and EZ , VarZ…

Q: The normal random variable X has mean 4 and variance 1.22. Find the probability hat: * * X < 2.5 X…

A: Given that.   X~N( μ , ?)   μ=4 , ?=1.22   Z-score =( x - μ )/?

Q: Question 2: The range of the random variable X is [0, 1, 2, 3, x] where x is unknown. Each value is…

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Q: For a normally distributed random variable, the population mean is 4.32 and population standard…

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Q: Assume x is normally distributed with mean 1 and  variance 2 .what is prob (X2) ? 1 0.2090 2…

A: It was stated to assume that X is normally distributed. The mean is 1. The variance is 2. In…

Q: If a random variable X ∼ Exponential(1). Find the distribution of Y = X/λ.

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Q: III. Mean, Variance and Standard Deviation of Discrete Random Variable bers (15-17). Determine the…

A: We have to find mean and Sd for given data.  As per guideline expert have to answer one question…

Q: The random variable x has a normal distribution with u = 200 and o = 20. a. Find the probability…

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Q: You believe both populations are normally distributed, but you do not know the standard deviations…

A: (a) The test statistic is 0.797, which is obtained below:…

Q: The random variable X has a binomial distribution with n=20 and p 0.01. What is the mean and…

A: As in binomial distribution  Mean = n*p variance = n*p*(1-p)

Q: A random sample of size 29 is selected from a normal population with mean = 12 and variance = 8.…

A: Reviewing information, Sample is selected from normal population n=29,  μ=12 , σ2=8

Q: Let X be a normally distributed random variable with a mean of 12 and a standard deviation of 1.25.…

A: given data  normal distribution μ = 12σ = 1.25P(x&lt;14) = ?

Q: 10. i. Find the mean of the uniform distribution in 5 <x<9. iv. Find the variance of the uniform…

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Q: x 8 9 10 11 12 Fx) 0.15 0.25 0.29 0.19 0.12   Find the mean Determine the variance…

A: