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svet-max [94.6K]
3 years ago
5

Suppose that two cards are randomly selected from a standard​ 52-card deck. ​(a) What is the probability that the first card is

a clubclub and the second card is a clubclub if the sampling is done without​ replacement? ​(b) What is the probability that the first card is a clubclub and the second card is a clubclub if the sampling is done with​ replacement?
Mathematics
1 answer:
ser-zykov [4K]3 years ago
3 0

Answer:

(a)\frac{1}{17} (b) \frac{1}{16}

Step-by-step explanation:

GIVEN: Suppose that two cards are randomly selected from a standard​ 52 card deck.

TO FIND: (a) What is the probability that the first card is a club and the second card is a club if the sampling is done without​ replacement? ​(b) What is the probability that the first card is a club and the second card is a club if the sampling is done with​ replacement.

SOLUTION:

(a)

Probability that first card is club P(A)=\frac{\text{total club cards}}{\text{total cards}}

                                                   =\frac{13}{52}

                                                   =\frac{1}{4}

As sampling is done without replacement.

probability that second card is club  P(B)=\frac{\text{total club cards}}{\text{total cards}}

                                                            =\frac{12}{51}

                                                            =\frac{4}{17}

Probability that first card is club and second card is club =P(A)\times P(B)

                                                                                             =\frac{1}{4}\times\frac{4}{17}=\frac{1}{17}

(b)

Probability that first card is club P(A)=\frac{\text{total club cards}}{\text{total cards}}

                                                   =\frac{13}{52}

                                                   =\frac{1}{4}

As sampling is done with replacement.

probability that second card is club  P(B)=\frac{\text{total club cards}}{\text{total cards}}

                                                            =\frac{13}{52}

                                                            =\frac{1}{4}

Probability that first card is club and second card is club =P(A)\times P(B)

                                                                                             =\frac{1}{4}\times\frac{1}{4}=\frac{1}{16}

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