I already asked this but I never got an answer. Will give a high rating and perhaps Brainliest.
2 answers:
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Answer: Our required probability is 0.3387.
Step-by-step explanation:
Since we have given that
Number of red cards = 4
Number of black cards = 5
Number of cards drawn = 5
We need to find the probability of getting exactly three black cards.
Probability of getting a black card =
Probability of getting a red card =
So, using "Binomial distribution", let X be the number of black cards:
Hence, our required probability is 0.3387.
Answer:
1) 32
2) 3
3) 135
Step-by-step explanation:
to know: when multiplying terms with same base and exponents, multiply the bases and add the exponents
to know: when dividing terms with same base and exponents, divide the bases and subtract the exponents
to know: whenever exponents are contained within a set of parentheses and separated by another set of parentheses, multiply the exponents
1) (·
·
) ÷ 2³
= 3
2) (15· 25j²
) ÷ 5³j³k³ = (375
) ÷ 125j³k³ = 3
3) (5 · 3³) = 135