What is the APY for money invested at each rate? (A) 13% compounded quarterly (B) 12% compounded continuously (A) APY_____
1 answer:
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Using the probability table, it is found that:
- a) There is a 0.25 = 25% probability that this couple spends 45 dollars or more.
- b) The expected amount the couple actually has to pay is $36.85.
Item a:
To find the probabilities involving the total cost, we have to <u>add the variables X and Y</u> from the table, then:
The probability involving <u>values of 45 or more</u> is:
0.25 = 25% probability that this couple spends 45 dollars or more.
Item b:
For a <em>discrete distribution</em>, the expected value is the <u>sum of each outcome multiplied by it's respective probability</u>, hence, involving the 10% discount for prices above $45:
The expected amount the couple actually has to pay is $36.85
A similar problem is given at brainly.com/question/25782059
, and
. This gives a remainder of
, and
. This gives a new remainder of
, and
. This gives a new remainder of
and so there is no remainder.
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Quicker method: Use the polynomial remainder theorem, which says the remainder upon dividing a polynomial by
is
. Here we have