Let X be a random variable with the following probability distribution: X -4 3 5 f(x) 0.3 0.2 0.5 Find the standard deviation of X. The standard deviation is (Round to two decimal places as needed.)

Five males with an​ X-linked genetic disorder have one child each. The random variable x is the number of children among the five who inherit the​ X-linked genetic disorder. Determine whether a probability distribution is given. If a probability distribution is​ given, find its mean and standard deviation. If a probability distribution is not​ given, identify the requirements that are not satisfied.   x ​P(x)       0 0.033       1 0.161       2 0.306       3 0.306       4 0.161       5 0.033           Does the table show a probability​ distribution? Select all that apply.     A. ​Yes, the table shows a probability distribution.   B. ​No, not every probability is between 0 and 1 inclusive.   C. ​No, the sum of all the probabilities is not equal to 1.   D. ​No, the random variable​ x's number values are not associated with probabilities.   E. ​No, the random variable x is…

Calculate the standard deviation ? of X for the probability distribution. (Round your answer to two decimal places.) x 0 1 2 3 P(X = x) 0.4 0.3 0.1 0.2 ? =

Let X be a random variable with the following probability distribution: - 4 3 5 f(x) 0.6 0.3 0.1 Find the standard deviation of X. The standard deviation is . (Round to two decimal places as needed.)

Assume that the probability of a being born with Genetic Condition B is p=1/5. A study looks at a random sample of 971 volunteers.Find the most likely number of the 971 volunteers to have Genetic Condition B.(Round answer to one decimal place.)μ = Let X represent the number of volunteers (out of 971) who have Genetic Condition B. Find the standard deviation for the probability distribution of X.(Round answer to two decimal places.)σ = Use the range rule of thumb to find the minimum usual value μ–2σ and the maximum usual value μ+2σ.Enter answer as an interval using square-brackets only with whole numbers.usual values =

Five males with an​ X-linked genetic disorder have one child each. The random variable x is the number of children among the five who inherit the​ X-linked genetic disorder. Determine whether a probability distribution is given. If a probability distribution is​ given, find its mean and standard deviation. If a probability distribution is not​ given, identify the requirements that are not satisfied.   x ​P(x)       0 0.032       1 0.162       2 0.306       3 0.306       4 0.162       5 0.032           Does the table show a probability​ distribution? Select all that apply.     A. ​Yes, the table shows a probability distribution.   B. ​No, not every probability is between 0 and 1 inclusive.   C. ​No, the random variable x is categorical instead of numerical.   D. ​No, the sum of all the probabilities is not equal to 1.   E. ​No, the random variable​ x's number values are…

X P(x) 0 0.1 1 0.25 2 0.3 3 0.35 Find the standard deviation of this probability distribution. Give your answer to at least 2 decimal places

Mean and Standard Deviation. Assume that the random variable X is normally distributed, with mean =70 and standard deviation =16. Which of the following is the probability that X is less than 90?

X P(X) 0.1 0.1 2 0.25 3 0.55 Find the standard deviation of this probability distribution. Give your answer to at least 2 decimal places

Calculate the standard deviation o of X for the probability distribution. (Round your answer to two decimal places.) O = 1 3 4 P(X = x) 0.1 0.5 0.1 0.3