mean = sum/n
mean = (5 + 7 + 7 + 9 + 12 + 16 + 21)/7
mean = 77/7
mean = 11
463 is the answer because-3 m + 4 would equal 463
IT's just a simple conversion.
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Ok. So, when you divide with decimal places, you have two options -
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Suck it up and divide, or move the decimal places to the right as many times as needed, until the number is a whole number.
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Choosing to move the decimal places to the right is the easy way out...
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So?
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Move decimal point to the right two places in both numbers!!
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80 and 64.
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So what is 80/64?
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You got it!!
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1.25.
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Hope I helped!!
19:76*100 =
( 19*100):76 =
1900:76 = 25%
Since there is a 70% chance of making $12,000 so have that:
.70 × 12000 = 8400
Also, we have a 10% chance of breaking even, so we also have that:
.10 × 0 = 0
Finally, we have a 20% chance of losing $7400 so we also have that:
.20 × 7400 = 1480
Thus, putting it all together we have:
.70(12000) + .10(0) + .20(7400) = 8400 + 0 + 1480 = 9880
Therefore, the expected value is:
$9880
