Question

Suppose that random variable t follows a Student t distribution with degrees of freedom v = 10. E(t) is _, and V(t) is _. t_{0.01,10} = ___. P(t > 0.879) = _. Suppose that random variable ?^2 follows a chi-squared distribution with v = 10. E(?^2) = _, and V(?^2) = ___. ?^2_{0.005,10} = ___. P(?^2 > 6.737) = _. Suppose that the random variable F follows an F distribution with 20 numerator degrees of freedom and 24 denominator degrees of freedom. E(F) = _, and V(F) = ___. F_{0.05,20,24} = _____. Suppose instead that F follows an F distribution with degrees of freedom v1 = 24 and v2 = 20. Without using the Distributions tool, what is the value of F_{0.95,24,20}? 0.432 0.266 0.493 0.551

          Suppose that random variable t follows a Student t distribution with degrees of freedom v = 10.

E(t) is _____, and V(t) is _____.

t_{0.01,10} = _____.

P(t > 0.879) = _____.

Suppose that random variable ?^2 follows a chi-squared distribution with v = 10.

E(?^2) = _____, and V(?^2) = _____.

?^2_{0.005,10} = _____.

P(?^2 > 6.737) = _____.

Suppose that the random variable F follows an F distribution with 20 numerator degrees of freedom and 24 denominator degrees of freedom.

E(F) = _____, and V(F) = _____.

F_{0.05,20,24} = _____.

Suppose instead that F follows an F distribution with degrees of freedom v1 = 24 and v2 = 20. Without using the Distributions tool, what is the value of F_{0.95,24,20}?

0.432
0.266
0.493
0.551

Suppose that random variable t follows a Student t distribution with degrees of freedom v = 10.

E(t) is , and V(t) is .

t0.01,10 = .

P(t > 0.879) = .

Suppose that random variable ?^2 follows a chi-squared distribution with v = 10.

E(?^2) = , and V(?^2) = .

?^20.005,10 = .

P(?^2 > 6.737) = .

Suppose that the random variable F follows an F distribution with 20 numerator degrees of freedom and 24 denominator degrees of freedom.

E(F) = , and V(F) = .

F0.05,20,24 = .

Suppose instead that F follows an F distribution with degrees of freedom v1 = 24 and v2 = 20. Without using the Distributions tool, what is the value of F0.95,24,20?

0.432
0.266
0.493
0.551

Added by Julie Y.

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