A distribution is given as X ~ Exp(0.75). What is m?

Assume that we have estimated the standard deviation of a sample x₁,. ., xn ER using the sample standard deviation s = ô(x₁,x2,...,xn). What does ô(−2x1, −2x2,..., -2xn) equal? A: s B: -4s C: 4s D: -2s E: 2s

Enter a value for π. A die is rolled until it shows 6. Denote the number of times it was rolled by X. Compute: E(X): Standard deviation of X: (enter at least 3 decimal places).

Only need D E F

Z = -0.0U 1.40 %3D Z3 -0.80 10. Find the z-score corresponding to a score of X = 45 for each of the following distributions. 40and o a. u = = 20 b. u = 40 and o = %3D 10 %3D C. u = 40 and o = 5 d. u = 40 and o = 2

Assume that a randomly selected subject is given a bone density test. Those test scores are normally distributed with a mean of 0 and a standard deviation of 1. Draw a graph and find the probability of a bone density test score greater than 0.42. Sketch the region. Choose the correct graph below. OA. Λ -0.42 The probability is (Round to four decimal places as needed.) A O D. ○ C. Q 0.42 -0.42 0.42 0.42

Find the margin of error for the given values of​ c, s, and n. c=0.90​, s=3.3​, n=16 Use the​ t-distribution table. ​(Round to one decimal place as​ needed.)

Find t0.9995 for T distribution with 24 degrees of freedom. to.9995 (Round the answer to 3 decimal places)

Find the value of t for the t distribution for the following. Area in the right tail = 0.05 and df =12 Round your answer to 3 decimal places. T=

Find the value of t for the t distribution with a sample size of 30 and area in the right tail equal to 0.025 . Round your answer to 3 decimal places.