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1) Probability assumes you know the sample statistics. TRUE/FALSE 2) Let the support of X contain...

1) Probability assumes you know the sample statistics. TRUE/FALSE

2) Let the support of X contain the values {-1,1}. Let the support of Y contain the values {-1000,1000}.

True or false: the expectation of X equals the expectation of Y.

For both X and Y assume the probabilities for both events are equal.

P(X=-1) = 0.5, P(X=1) = 0.5, P(Y=-1000) = 0.5, P(Y=-1000) = 0.5

3)Let the support of X contain the values {-1,1}. Let the support of Y contain the values {-1000,1000}.

True or false: the Variance of X equals the Variance of Y.

For both X and Y assume the probabilities for both events are equal.

P(X=-1) = 0.5, P(X=1) = 0.5, P(Y=-1000) = 0.5, P(Y=-1000) = 0.5

Math   Statistics-And-Probability   
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