Mathematics, 07.03.2020 05:40 lasagnafoe
An urn consists of 20 red balls and 30 green balls. We choose 10 balls at random from the urn. The sampling is done without replacement (repetition not allowed).
a. What is the probability that there will be exactly 4 red balls among the chosen balls?
b. Given that there are at least 3 red balls among the chosen balls, what is the probability that there are exactly 4 red balls?
Answers: 3
Mathematics, 21.06.2019 17:00
Solve with work both bert and ernie received an increase in their weekly salaries. bert's salary increased from $520 to $520. ernie's salary went from $580 to $645. find the percent of increase for each salary. what was the larger of the two percents ?
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Mathematics, 21.06.2019 18:20
What is the solution set of the quadratic inequality x^2-5< or equal to 0
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Mathematics, 21.06.2019 21:30
If you flip a coin 3 times, what is the probability of flipping heads 3 times? a. p(3 heads) = 3/8 b. p(3 heads) = 1/6 c. p(3 heads) = 1/8 d. p(3 heads) = 1/2
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An urn consists of 20 red balls and 30 green balls. We choose 10 balls at random from the urn. The s...
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