The random variable X has a binomial distribution with n=20 and p 0.01. What is the mean and Variance of X? 2 and 198 0.2 and 0.198 0.1 and 0.099 None 84°F Mostly sunn 近

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

A:

Q: e. Find the standard deviation of the random variable X.

A: A random Sample of 200 residents; n=200 p=0.254

Q: A random variable X has the following probability distribution. Values of X -1 1 Probability 0.22…

A: We have given that Values of x -1 0 1 ProbabilityP(x) 0.22 0.56 0.22

Q: Assume that ? is a random variable has a gamma distribution with (alpha) = 3 and (beta) = 10. A)…

A: Here alpha = 3 , beta = 10 Mean = 3×10 = 30 Standard deviation = 10 √3 = 17.32

Q: The probability that a radish seed will germinate is 0.7. A gardener plants seeds in batches of 10.…

A: Given data p=0.7 n=10

Q: The random variable X has a Poisson distribution with a mean value of 6. According to this P(2 SXs…

A:

Q: Q5: Let X be a random variable following a normal distribution with mean 14 and variance 4.…

A: Given, Mean μ = 14Variance σ2 = 4Standard deviation σ = 2 P(X-2 > c) = 0.95

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

A: List of formulae : Let the random variable X follows Binomial distribution with parameter n and p…

Q: A normal distribution has a mean of u = 50 with o = 6. If one score is randomly selected from this…

A: Given :  A normal distribution has a mean of u = 50 with σ = 6. If one score is randomly selected…

Q: The mean and the variance of a binomial distribution with parameters n and p are E(X) =6 and V(X)=3.…

A:

Q: The Variance of the Binomial distribution is... O a.u O b. npq O d. None of these. O e.A

A: The Variance of the Binomial distribution is =npq

Q: 3 Let Y~ N (4; o?1,) with and o = 3. Y'Y (a) What is the distribution of o2 (b) Calculate the mean…

A: In

Q: A normal distribution has a mean of u= 100 with o = 20. If one score is randomly selected from this…

A: Mean = 100 Standard deviation = 20

Q: C. X is a normally distributed random variable with a mean of 57 and a standard deviation of 6. Find…

A: Given data : Population mean  = 57 Population standard deviation = 6

Q: A normal distribution has a mean of u = 60 with o = 8. If one score is randomly selected from this…

A: Mean = 60 Standard deviation = 8

Q: Assume that the random variable x is normally distributed with mean u 70 and standard %D deviation o…

A: We have given that.   X~N( μ , ?^2 )   μ = 70, ? = 10     Z-score =( x - μ )/?

Q: e. Find the variance and standard deviation of the probability distribution of the random variable X…

A:

Q: The random variable X is B(n,0.3) and E(X) =2.4. find n and the standard deviation

A: A random variable uses the binomial distribution, if it follows the conditions given below.  There…

Q: A normally distributed random variable X with variance o=400 and P(X > 130) = 0.6554. Then the mean…

A: Let X be a continuous random variable and is normally​ distributed with a mean of μ and a standard…

Q: The pulse rate of adults in a given population follows a normal distribution with a mean of 70 and a…

A: From the given information, it is clear that,  Population mean μ=70 Population variance σ2=20 Sample…

Q: A discrete random variable X has variance 3. Which of the following is the variance of 3X - 2? 25 3…

A:

Q: Consider the discrete random variable X given in the table below. Calculate the mean, variance, and…

A: Hello! As you have posted more than 3 sub parts, we are answering the first 3 sub-parts.  In case…

Q: The weight of frogs in grams in a marsh population are normally distributed with mean (P) and…

A:

Q: Let ? be a continuous random variable with Uniform distribution having mean 1 and variance 4/3.…

A:

Q: The mean and the variance of a binomial distribution with parameters n and p are E(X) =6 and V(X)…

A:

Q: The random variable X has a Poisson distribution with a mean value of 6. According to this P(25xS…

A: GivenMean value =6λ=6x~Poisson(λ=6)P(X=x)=e-λ*λxx! ; x≥0

Q: A civil engineering model for W, the weight (in units of 1000 pounds) that a span of a bridge can…

A:

Q: The uniform distribution of a random variable X is given in the figure below. 1 2 From the figure,…

A: Given,A random varible X~U(0, 2)f(x)=12   ; 0≤x≤2

Q: The discrete random variable X has the probability distribution given by: 2 4 6 8 P(X= x) 0.15 0.15…

A:

Q: The number of claims X on a health insurance policy is a random variable with E(XX) = 16 and…

A: Given: E( X2 ) = 16 E( [ X+1 ]2 )= 23

Q: A random variable X follows a Normal distribution with meanu = 38.9 and standard deviation o = 3.1.…

A: GivenMean(μ)=38.9standard deviation(σ)=3.1

Q: Suppose X is a normal random variable with mean 10 and variance 4: X~N?(10,4) and standard…

A: Given data,Mean=10Sd=2

Q: TL.. Which of the following random variables is discrete? (A) the length of time a battery lasts (B)…

A:

Q: For a binomial distribution mean is 6 and variance is 2. Find the P(X = 4). O 0.1024 O 0.0012 O…

A: Given : Also, The mean of the distribution (μx) is equal to n * P  = 6 The variance (σ2x) is n * p…

Q: A random variable X has the following probability distribution. Values of X -1 1 Probability 0.28…

A:

Q: In a certain normal distribution, find the standard deviation o when u = 50 and 10.56% of the area…

A:

Q: The probability distribution of a random variable X is given. x     10         11         12…

A: We have given the probability distribution of random variable x.

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

A: According to the provided information, we have Let X be a random variable follows binomial…

Q: A normally distributed random variable X with variance o = 400 and P(X > 130) = 0.6554. Then the…

A: X is a normally distributed random variable with unknown mean and variance 400. Let mean value of X…

Q: Let T be a random variable. If E(T) = a+b0, find an unbiased estimator of 0. Is the mean- squared…

A:

Q: Suppose that f (x) = e¬* for 0 < x Determine the mean and variance of the random variable. Attach…

A:

Q: a) The random variable X has a binomial distribution b(11, p). If P(X =8)= P(X =7), find the value…

A: We have to find mean and variance.

Q: The probability distribution of a random variable x is given. 3 4 0.4 0.2 Compute the mean,…

A: Solution: From the given information, the probability distribution of X is

Q: The mean and the variance of a binomial distribution with parameters n and p are E(X) =6 and V(X) 3.…

A:

Q: spectively. Find the mean and standard deviation of the given random variable y = x + 3 ) = 5x w =…

A: Given : Mean=9 Sd= 4

Q: Suppose that X~Uniform( –2,8), find (a) The mean value of this random variable. (b) The standard…

A:

Q: Fawns between 1 and 5 months old in Mesa Verde National Park have a body weight that is…

A: Given,mean(μ)=26.62 kgStandard deviation(σ)=4.09  kg

Q: X is a normally distributed random variable with a mean of 10 and a standard deviation of 5. The…

A: Given data, μ=10σ=5P(X&lt;9.7)=?

Q: A continuous random variable x is normally distributed with a mean of 1 and a standard deviation of…

A: Given Mean μ=1, standard deviations σ=0.2  X~N(μ=1, σ=0.2) P(X=0.5)=?

Q: A normal distribution has a mean of u 100 with a= 20. If one score I5 randomly selected from this…

A: Given that, Mean = 100 Standard deviation = 20