If mean of a given data for a random value is 81.1 and standard deviation is 4.7, then find the probability of getting a value more than 83.
If mean of a given data for a random value is 81.1 and standard deviation is...
1) A Gaussian random variable has a mean value of 3 and a standard deviation of 2. Find the probability that the value of the random variable exceeds 9. Repeat for the probability that it is less than -5. ANSWER WITH COMPLETE STEPS THANKS
Suppose x has a distribution with a mean of 90 and a standard deviation of 21. Random samples of size n = 36 are drawn. (a) Describe the x distribution and compute the mean and standard deviation of the distribution has ---Select- distribution with meanz - and standard deviation o, - (b) Find the z value corresponding to x = 83. ZE (c) Find P(x < 83), (Round your answer to four decimal places.) P(x < 83) = (d) Would...
6.33 Let x be a continuous random variable that is normally distributed with a mean of 25 and a standard deviation of 6. Find the probability that x assumes a value a. between 28 and 34 b. between 20 and 35 6.34 Let x be a continuous random variable that has a normal distribution with a mean of 30 and a stan- dard deviation of 2. Find the probability that x assumes a value a. between 29 and 35 b....
Given a mean of 62 and a standard deviation of 5, convert the random variables to Z-scores, then use a standard normal table below to find the probability. Pr[62 ≤ X ≤ 67] =
A random variable X has a normal random varia ble with mean of 20 and standard deviation of 2 (a) Find the two values of X that separates the middle 50% of data (or area) of the distribution of X. Keep at least 2 decimal places (b) Compute the probability that the variable is at most 15. Keep at least 4 decimal places (c) Compute the probability that the variable is less than 12 or more than 21 Keep at...
Assume the random variable x is normally distributed with mean=87 and standard deviation=5 . Find the indicated probability. P(x<83)
CI Assume the random variable x is normally distributed with mean probability 89 and standard deviation ơ 4 Find the indicated Px 83) P(x < 83) (Round to four decimal places as needed.) Enter your answer in the answer box imal p O Type here to search 图自3 e )
Given a population mean of 32.14, a standard deviation of 0.4 and the probability of getting a value below 32 P(x<32) is 0.3632, Find the P(x<32) if the sample size is 20 using functions on a TI n-spire please. Thanks!
A population has a mean μ-85 and a standard deviation σ-21. Find the mean and standard deviation of a sampling distribution of sample means with sample size n 49 H(Simplity your answer) o-# L] (Simplify your answer.) to the random variable x is normally distributed with mean-83 and standard deviation ơ-4 Find the indicated probability P(70sx 76) P(70 < x < 76)= Round to four decimal places as needed.) Enter your answer in the answer box
Given a normal population whose mean is 440 and whose standard deviation is 26, find each of the following (use Excel to obtain more accuracy): A. The probability that a random sample of 4 has a mean between 442 and 450. Probability = B. The probability that a random sample of 16 has a mean between 442 and 450. Probability = C. The probability that a random sample of 29 has a mean between 442 and 450. Probability =