A random variable X has following distribution x=x P(X=x) 1 2 3 4 5 k 3k 5k 7k 8k 6K 6 k Then P (2≤x≤5)=

Q: Steel produced by company A has an average tensile strength of 4500 lbs and a variance of 40000 lbs,…

A: Solution: Given information: nA= 50  Sample size of company A nB= 100 Sample size of company  B μA=…

Q: If X is a continuous random variable with mean μ and standard deviation σ, what is the probability…

A: Answer: Approximately 68% of the values of X are expected to lie between μ - σ and μ + σ. This is…

Q: Suppose that a random variable X is distributed uniformly over an interval [15, 25]. Find the…

A: Given that, The random variable X has a uniform distribution. X~U[15,25] The density function of the…

Q: “Oxygen demand” is a term biologists use to describe the oxygen needed by fish and other aquatic…

A: a) According to range rule thumb the standard deviation can be estimated as σ = R/4, where R is the…

Q: If Y Poisson(2) and Z Poisson(3) are independent, what is distribution of W = Y + Z?

A: Solution: Given  Y~Poisson(2)    and  Z~Poisson(3)   Y and Z are independent random variable

Q: the probability of P(X=k)= if a binomial distribution with a trial repeated n = 9 times,Using the…

A: The probability of success can be calculated as: p+q=1 p+0.61=1 p=1-0.61 p=0.39

Q: Fast answer please

A: The question is asking whether the variance of the product of two independent random variables X and…

Q: Total blood volume (in ml) per body weight (in kg) is important in medical research. For healthy…

A: a) Suppose μ is the true mean volume of Roger's red blood cell.

Q: Total blood volume (in ml) per body weight (in kg) is important in medical research. For healthy…

A: Given Information: μ = 28 ml/kg Sample size (n) = 7 Population standard deviation (σ) = 4.75…

Q: is x discrete or a continuous random variable

A:

Q: The time to fly between New York City and Chicago is uniformly distributed with a minimum of 120…

A: Given,A random variable X~U(120 , 150)f(x)=1150-120f(x)=130   ;   120≤X≤150

Q: The mean of all the sample means obtained from all random samples of a certain sample size in a…

A: Here, we have sample mean is an biased estimate of the given random sample.

Q: What is the probability of P(X=k)= if a binomial distribution with a trial repeated n=13 times,…

A: Let X be a random variable where; X~Binomial(n,p)The probability mass function is given…

Q: James is supposed to take medication every night, but sometimes he forgets. He forgets to take his…

A: Answer: Given that: p= 0.03 , n= 31 now will use Binomial probability…

Q: d) What is the standard deviation of T? e) What is the probability that T is within 2.0 standard…

A: As per bartleby guidelines we can solve only first three subparts and rest can be reposted

Q: If null hypothesis is false because a drop has occurred, then the observed z will be?

A: It is given that the null hypothesis false. That is, it should be rejected.

Q: P (X) = x / 10 if,  X = 1, 2, 3, 4 is a probability distribution for the random variable X. True…

A: We have to find true or false.

Q: What is the probability of P(X=k)=if a binomial distribution with a trial repeated n = 10 times,…

A: From the provided information, Number of trials (n) = 10 Probability of success (p) = 17% that is…

Q: Is there a correlation between hours slept and performa Statistics exam? Please calculate both R and…

A: Given data, X Y X*Y X*X Y*Y 5 9 45 25 81 10 2 20 100 4 9 1 9 81 1 6 6 36 36 36 8 5 40…

Q: ive males with an​ X-linked genetic disorder have one child each. The random variable x is the…

A: x p(X) x*p(x) x2*p(x) 0 0.028 0 0 1 0.148 0.148 0.148 2 0.324 0.648 1.296 3 0.324 0.972…