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SashulF [63]
3 years ago
14

Given a mean of 61.2 and a standard deviation of 21.4, within how many standard deviations of the mean do the values 45,78,62,90

, and 31 fall?
a.0
b.1
c.2
d.3
Mathematics
2 answers:
vovangra [49]3 years ago
7 0
2 standard deviations or c
givi [52]3 years ago
5 0
The answer is C. ^^^
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Answer:

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Step-by-step explanation:

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2 years ago
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Solve the equation using square roots. x2 + 5 = 41
Stells [14]
X*2 +5 =41
Subtract 5 from both sides
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Square root of 36 is 6

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This’s correct!
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Step-by-step explanation:

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3 years ago
Ted has a credit card that uses the average daily balance method. For the first 9 days of one of his billing cycles, his balance
slega [8]
Your question doesn't say what are the options, but we can make some reasoning.

The average daily balance method is based, obviously, on the <span>average daily balance, which is the average balance for every day of the billing cycle. Therefore, in order to calculate the average daily balance, you need to sum the balance of every day and then divide it by the days of the billing cycle.
In your case:
ADB = (9</span>×2030 + 21×1450) / 30 = 1624 $

Now, in order to calculate the interest, you should first calculate the daily rate, since APR is usually defined yearly, and therefore:
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Finally, the expression to calculate the interest could be:
interest = ADB × rate × days in the billing cycle
or else:
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In your case:
interest = 1624 </span>× 0.23 ÷ 365 × 30
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4 years ago
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