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There are seven distinct balls in the box below. We randomly select 4 balls without replacement....

There are seven distinct balls in the box below. We randomly select 4 balls without replacement. How many random samples (of size 4) can we have? How likely Ball 2 will be included in the sample?

A) There are 35 samples and Ball 2 will be included in the sample with probability 1/7.
B) There are 35 samples and Ball 2 will be included in the sample with probability 2/7.
C) There are 35 samples and Ball 2 will be included in the sample with probability 3/7.
D) There are 35 samples and Ball 2 will be included in the sample with probability 1/3.
E) There are 70 samples and Ball 2 will be included in the sample with probability 1/2.
F) There are 70 samples and Ball 2 will be included in the sample with probability 1/3.
G) There are 70 samples and Ball 2 will be included in the sample with probability 1/7.
H) There are 70 samples and Ball 2 will be included in the sample with probability 2/7.
I) There are 35 samples and Ball 2 will be included in the sample with probability 3/7.
J) There are 35 samples and Ball 2 will be included in the sample with probability 4/7.
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