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Selecting Cards The red face cards and the black cards numbered 29 are put into a bag
Chapter 4, Problem 10(choose chapter or problem)
Selecting Cards The red face cards and the black cards numbered 2–9 are put into a bag. Four cards are drawn at random without replacement. Find the following probabilities:
a. All 4 cards are red.
b. 2 cards are red and 2 cards are black.
c. At least 1 of the cards is red.
d. All 4 cards are black.
Questions & Answers
QUESTION:
Selecting Cards The red face cards and the black cards numbered 2–9 are put into a bag. Four cards are drawn at random without replacement. Find the following probabilities:
a. All 4 cards are red.
b. 2 cards are red and 2 cards are black.
c. At least 1 of the cards is red.
d. All 4 cards are black.
ANSWER:Step 1 of 8
Experiment: From 11 different cards (red face cards - J, Q, K and black 2-9 cards), four are selected at random.
Events:
A - all the selected cards are red
B - exactly two of the selected cards are red
C - at least one of the selected cards is red
D - all four cards are black
Compute the probability of A, B, C, and D
The probabilities will be found using the formula for classical probability, the combination rule, and the fundamental counting rule