8- Find the mean and variance of X? X 0 1 2 4 f(x) 1/9 2/9 3/9 2/9 1/9 a) 3, 2/3 1903 b) O 2, 4/3 c) O 3, 4/3 d) O 2, 2/3 3.

​An analysis of variance produces SSbetween = 40, SSwithin = 60, and an F-ratio with df = 2, 15. For this analysis, what is the F-ratio?

An analysis of variance produces SSetween 30, SSwithin " 60, and an F-ratio with df 2, 15. For this analysis, what is the F-ratio? O 2.00 O 0.50 O 3.75 O 0.27

T/F question the MSE(theta) for an unbiased estimator is given by its variance.

2 Please help

A population of N = 5 scores has a mean of µ = 8. If one score with a value of X = 4 is removed from the population, what is the value for the new mean?  What is the mode for the population of scores shown in the frequency distribution table? X f   5 3   4 4   3 3   2 3   1 2 After every score in a sample of n = 5 is multiplied by 2, the mean is calculated and found to be M = 8. What was the mean of the original sample?

What is indicated by a Pearson correlation of r= +1.00 between X and Y? O Every increase in X causes an increase in Y Every change in X causes a change in Y O Each time X increases, there is a perfectly predictable increase in Y All of the other 3 choices occur with a correlation of +1.00.

suppose the mean is 8 and 1/3 and the population variance is 6 and 8/9 and a>9 x 5 9 a frequency 3 f 2 a=? f=?

3. Let X Pois(4). Find the distribution of Y = √X.

Are the signs of the coefficients on the variables "Frequency of Flights" and "Destination is a Big City" corresponding to the utility of the "Air" mode meaningful?   Utility for Car Utility for Air   param.  t stat Param. t stat Constant 4.77 6.995 0 fixed Travel Time (mins) -0.03 -16.926 -0.03 -16.926 Travel Cost / Income ($/$) -726.35 -4.28 -726.35 -4.28 Frequency of Flights (per week) 0 fixed 0.12 13.414 Is Destination a Large City 0 fixed 1.5 5.576 Travel Party Size > =2^2 1.75 5.873 0 Fixed