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Maggie Davis

Maggie D.

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At a college, 72% of courses have final exams and 46% of courses require research papers. Suppose that 32% of courses have a research paper and a final exam. Let F be the event that a course has a final exam. Let R be the event that a course requires a research paper. a. Find the probability that a course has a final exam or a research project. b. Find the probability that a course has NEITHER of these two requirements.

At a college, 72% of courses have final exams and 46% of courses require research papers. Suppose that 32% of courses have a research paper and a final exam. Let F be the event that a course has a final exam. Let R be the event that a course requires a research paper. a. Find the probability that a course has a final exam or a research project. b. Find the probability that a course has NEITHER of these two requirements.

Introductory Statistics

Probability Topics

Two Basic Rules of Probability

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Sheryl Ezze verified

Numerade educator

You deposit $ 7354 in an account earning 1 % interest compounded monthly. How much will you have in the account in 14 years? $__________ (Give your answer accurate to 2 decimal places)

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Sanchit Jain verified

Numerade educator

Suppose a jar contains 649 red marbles and 51 blue marbles. If you reach in the jar and pull out 2 marbles at random, find the probability that both are red. (Enter your answer in decimal format rounded to 2 decimal places

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Maria Dearborn verified

Numerade educator

You want to have a $ 70377 college fund in 14 years. How much will you have to deposit now in an account with an APR of 8.1 % and monthly compounding? $__________ (Round to the nearest cent)

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Manisha Sarker verified

Numerade educator

A lock uses 3 numbers for an unlock code, each of which can be 0 to 34. If there are no restrictions on the numbers, how many possible unlock codes are available?

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Supratim Pal verified

Numerade educator

Utility companies often charge a late fee for overdue bills that are calculated using simple interest. Suppose that your current gas bill is $88 and the gas company charges 11% simple interest for late payment. How much do you owe in interest if the bill is paid two months late? Round answer to 2 decimal places.

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Supratim Pal verified

Numerade educator

Suppose you want to have $ 415680 for retirement in 10 years. Your account earns 2.3 % interest monthly. How much interest will you earn? $_________ (Round to the nearest DOLLAR)

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Sheryl Ezze verified

Numerade educator

You deposit $ 109 each month into an account earning 6.5 % interest compounded monthly for 3 years. How much total interest will you earn? $_____________ (Round to the nearest DOLLAR)

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Derek Follett verified

Numerade educator

Miss Daisy has just celebrated her 40th birthday, and she plans to retire on her 65th birthday. She has determined that she will need a total of $300,000 at that time to fund her retirement. Suppose that her employer offers a 401k retirement plan that earns 5.5% compounded monthly. How much (rounded to the nearest dollar) should Ms. Daisy deposit at the end of each month to in order to achieve her retirement goal?

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ANSWERED

Sheryl Ezze verified

Numerade educator

You deposit $ 107 each month into an account earning 2.5 % interest compounded monthly. How much will you have in the account in 16 years? $__________ (Round to 2 decimal places if necessary)

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Supratim Pal verified

Numerade educator

You have $ 795346 saved for retirement. Your account earns 8.3 % interest. How much will you be able to pull out each month, if you want to be able to take withdrawals for 14 years? $__________ (Round to 2 decimal places if necessary)

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