3. An urn contains exactly 10 red chips and 6 blue chips. Five chips are randomly selected without replacement. Let X denote the number of blue chips in the sample of five chips. (a) What type of random variable is X? Indicate both the type and the appropriate parameters using the "~" notation. Write down the pmf of X, and do not forget to indicate the range of values that x can take on. X ~ X= - px(x) (b) What is the probability that there are between two and four blue chips among the five chosen chips? Express your answer as a decimal.

A First Course in Probability (10th Edition)
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3. An urn contains exactly 10 red chips and 6 blue chips. Five chips are randomly
selected without replacement. Let X denote the number of blue chips in the sample
of five chips.
(a) What type of random variable is X? Indicate both the type and the appropriate
parameters using the "~" notation. Write down the pmf of X, and do not forget
to indicate the range of values that x can take on.
X ~
px (x)
(b) What is the probability that there are between two and four blue chips among
the five chosen chips? Express your answer as a decimal.
=
(*)*
Transcribed Image Text:3. An urn contains exactly 10 red chips and 6 blue chips. Five chips are randomly selected without replacement. Let X denote the number of blue chips in the sample of five chips. (a) What type of random variable is X? Indicate both the type and the appropriate parameters using the "~" notation. Write down the pmf of X, and do not forget to indicate the range of values that x can take on. X ~ px (x) (b) What is the probability that there are between two and four blue chips among the five chosen chips? Express your answer as a decimal. = (*)*
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An urn contains 10 red chips and 6 blue chips.

5 chips are randomly selected without replacement.

X denotes the number of blue chips in the sample of five chips.

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