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tester [92]
3 years ago
7

Emily is going to the movies this weekend with some friends. they have a total of $54 to spend. Emily wants a large popcorn that

is $12. If each movie ticket costs $6, how many tickets can Emily buy?
Mathematics
2 answers:
Anestetic [448]3 years ago
8 0
6x+12=54

6x+12=54
-12 -12
———————
6x = 42
——————-
6x 6x = 7


The answer will be 7
timurjin [86]3 years ago
3 0
Answer is 7

You have to do

54 - 12= 42

Then divide 42 by 6 which equals 7
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Central Limit Theorem

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For a skewed variable, the Central Limit Theorem can also be applied, as long as n is at least 30.

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At the null hypothesis, we test that there is no difference, that is, the subtraction is 0. So

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At the alternate hypothesis, we test that there is difference, that is, the subtraction is different of 0. So

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z = \frac{X - \mu}{s}

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0 is tested at the null hypothesis:

This means that \mu = 0

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z = \frac{X - \mu}{s}

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