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VashaNatasha [74]
3 years ago
9

Summer Storme is analyzing an investment. The expected one-year return on the investment is 20 percent. The probability distribu

tion of possible returns is approximately normal with a standard deviation of 15 percent. a. What are the chances that the investment will result in a negative return? b. What is the probability that the return will be greater than 10 percent? 20 percent? 30 percent? 40 percent? 50 percent?
Mathematics
2 answers:
TiliK225 [7]3 years ago
8 0
S s sbbdbdbdbdb dhsbdhdnr
Eva8 [605]3 years ago
3 0

Answer:

suchh harddb

Step-by-step explanation:

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stira [4]

3^0 if zero is an exponent then the answer would be 1.


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3 years ago
During a concert, $3280 was received. A total of 760 people attended. Reserved seats were $6 and general admission seats were $4
Andre45 [30]

Answer:

The number of reserved seat is 120 and number of general seat is 640.

Step-by-step explanation:

Given,

Total number of seats = 760

Total collected Money = $3280

Solution,

Let the total number of reserved seat be x.

And  the total number of general seat be y

Hence total number of seats is the sum of total number of reserved seat and  the total number of general seats.

So the equation can be written as;

x+y=760\ \ \ \ equation\ 1

Again, total money collected is the sum of fees of one reserved seat times total number of reserved seat and fees of one general seat times the total number of general seats.

So the equation can be written as;

6x+4y=3280\ \ \ \ \ equation\ 2

Now, multiplying equation 1 by 4 and then subtract it from equation 2.

4x+4y=3040

(6x+4y)-(4x+4y)=3280-3040\\\\2x=240\\\\x=\frac{240}{2}=120

On substituting the value of x in equation 1, we get;

x+y=760\\120+y=760\\y=760-120=640

Thus the number of reserved seat is 120 and number of general seat is 640.

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2 years ago
205.2÷5.4<br> I need help
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The answer to that question is 38. 
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in a certain year the average e-mail user sent or received 148 e-mails each day. The number of e-mails received was 4 more than
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Answer:

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Step-by-step explanation:

148(2)+4=   1136

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Answer:

The first option in the first picture

Step-by-step explanation:

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