What is the sample space when an unbiased dice is thrown. IF the output IS A prime number, a coin is tossed, If the output is a composite number a card from a deck of 52 cards is drawn if the number comes as one . what is the sample space?
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Total no. of ways = 52C2
Case I: Both are diamonds = 13C2
Case II: Both are kings = 4C2
P (both are diamonds or both are kings) = (13C2 + 4C2 ) / 52C2
Example 7: Three dice are rolled together. What is the probability as getting at least one '4'?
Sol: Total number of ways = 6 × 6 × 6 = 216. Probability of getting number ‘4’ at least one time
= 1 – (Probability of getting no number 4) = 1 – (5/6) x (5/6) x (5/6) = 91/216
PLEASE MARK MY ANSWER AS A BRAINLIEST.
Case I: Both are diamonds = 13C2
Case II: Both are kings = 4C2
P (both are diamonds or both are kings) = (13C2 + 4C2 ) / 52C2
Example 7: Three dice are rolled together. What is the probability as getting at least one '4'?
Sol: Total number of ways = 6 × 6 × 6 = 216. Probability of getting number ‘4’ at least one time
= 1 – (Probability of getting no number 4) = 1 – (5/6) x (5/6) x (5/6) = 91/216
PLEASE MARK MY ANSWER AS A BRAINLIEST.
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