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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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six girls and four boys have entered the science fair. first, second, and third place awards are to be given out. what is the pr
Dafna1 [17]
Given:
6 girls
4 boys

Probability of 1 girl being chosen: 1/6
Probability of 1 boy being chosen: 1/4
Probability of another boy being chosen: 1/3

1/6 = 0.17 x 100% = 17%
1/4 = 0.25 x 100% = 25%
1/3 = 0.33 x 100% = 33%

17% + 25% + 33% = 75%

The probability that exactly one girl and two boys will receive awards is 75%.
7 0
3 years ago
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Bella has 40 coins, all nickles and quarters, worth $7.60. How many nickles and quarters does she have?
Anestetic [448]

Answer:

28 quarters and 12 nickles

Step-by-step explanation:

How many quarters goes into 7 dollars? 28, because there is 4 in each dollar.

How many nickles are in 60 cents? 12, because 5 times 12 is 60.

7 0
3 years ago
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The Band Booster club sells beverages for $1.47 and candy for $1.61 at home games. Their goal is to have total sales of $229.11
evablogger [386]
Answer: D) 1.47x + 1.61y = 229.11

Explanation: The amount of beverages and candy sold combined (addition) should be set equal to the targeted goal per game ($229.11).
4 0
3 years ago
HELP ME PLEASE!<br><br> In triangle FGH, GH=1, FG=12, and GH=sq. root of 145
topjm [15]

Answer:

B&C: tan F=0.0833 & tan H=12.0000

Step-by-step explanation:

The tangent relationship is always opposite/adjacent.

When F is the reference angle, side GH (1) is the opposite side and side FG (12) is the adjacent.

1/12 is 0.0833

When H is the reference angle, FG (12) is the opposite and GH (1) is the adjacent.

12/1 is 12.

3 0
3 years ago
Answer plz answer plz​
yaroslaw [1]

Answer:

C. 2 y^2

Step-by-step explanation:

( {3} \degree  {y}^{2} ) \times \: 2(xy) \degree \\={3} \degree  {y}^{2}  \times \: 2\times x \degree\times y \degree \\=1  {y}^{2}  \times \: 2\times 1\times 1 \\  =  {y}^{2}  \times 2  \\    = 2 {y}^{2}

3 0
3 years ago
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