Mathematics, 11.05.2021 19:20 shyiere4068
17. You invest $1000 in the investment shown below. What is the expected value, in dollars, of the investment?
Investment
• Complete loss: 10% chance
• No gain or loss: 10% chance
• 100% gain: 60% chance
• 200% gain: 20% chance
18. You invest $2000 in the investment shown below. What is the expected value, in dollars, of the investment?
Investment
• Complete loss: 5% chance
• No gain or loss: 15% chance
• 50% gain: 75% chance
• 150% gain: 5% chance
22. A paper bag contains 10 red marbles, 8 yellow marbles, and 14 blue marbles. You draw a marble, replace it, and then draw another marble. What is the probability that neither marble is yellow? Give your answer as a decimal rounded to the nearest thousandth (probability that event does not occur = 1 - p).
23. Your friend flips three coins and tells you that at least one coin landed heads up. What is the probability that the other two coins landing heads up? Give your answer as a decimal rounded to the nearest thousandth.
24. Your friend has three children. At least one of the three children is a girl. What is the probability that at least one of the children is a boy? Give your answer as a decimal rounded to the nearest thousandth.
I need these asap! I've already tried them just have a gut feeling they're wrong... please help! Thank you! No links or anything either.
Answers: 1
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