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ikadub [295]
3 years ago
5

If a event cannot happen what value is assigned to its probability

Mathematics
2 answers:
34kurt3 years ago
8 0

Answer:

0% bec it cant happen

Step-by-step explanation:

irakobra [83]3 years ago
3 0
0% because there is no chance it can happen
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Answer:

\bar x = 82

\sigma =  9.64

Step-by-step explanation:

Given

n = 12

87\ 91\ 86\ 82\ 72\ 91\ 60\ 77\ 80\ 79\ 83\ 96

Solving (a); Point estimate of mean

To do this, we simply calculate the sample mean

\bar x = \frac{\sum x}{n}

\bar x = \frac{87+ 91+ 86+ 82+72+91+60+77+80+79+83+96}{12}

\bar x = \frac{984}{12}

\bar x = 82

Solving (b); Point estimate of standard deviation

To do this, we simply calculate the sample standard deviation

\sigma = \sqrt{\frac{\sum(x-\bar x)^2}{n - 1}

\sigma = \sqrt\frac{(87-82)^2+ (91-82)^2+ ....+ (79-82)^2+ (83-82)^2+ (96-82)^2}{12-1}

\sigma = \sqrt\frac{1022}{11}

\sigma = \sqrt{92.91}

\sigma =  9.64

<em>Note that: The sample mean and the sample standard deviation are the best point estimators for the mean and the standard deviation, respectively.</em>

<em>Hence, the need to solve for sample mean and sample standard deviation</em>

3 0
3 years ago
Is negative twelve a whole number,integer,or rational number?
mrs_skeptik [129]
Its an Integer. Integers include negative numbers, zero and positive numbers :)
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If A=16 degrees 55’ and c=13.7, find a
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is there more?to this question

7 0
3 years ago
I need help. (image below)
vovangra [49]

Answer:

∠5 = 35°

Step-by-step explanation:

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∠5 = 35°

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She drinks 4.27 grams on calcium in 14 days at one glass of milk containing 14 mg per day
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