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Sergio039 [100]
3 years ago
13

If 12 x 2 is 24, 12 x 3 is 36, 12 x 4 is 48, then what is 12 x 12?

Mathematics
2 answers:
Kaylis [27]3 years ago
6 0

Answer:

12 x 12 is 144

Step-by-step explanation:

All you have to do is keep adding 12 each time :)

Stella [2.4K]3 years ago
6 0

Answer:

Well, if you keep going like since your saying 12 x 2 is 24, 12 x 3 is 36, basically all you do is 12 x 12 is the same as adding 12 , 12 times like since 12 x 2 is 24, you add 12 two times you get your answer.

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A simple random sample of size n=14 is obtained from a population with μ=64 and σ=19.
madam [21]

Answer:

a) A. The population must be normally distributed

b) P(X < 68.2) = 0.7967

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Step-by-step explanation:

a) The population is normally distributed having a mean (\mu_x) = 64  and a standard deviation (\sigma_x) = \frac{19}{\sqrt{14} }

b) P(X < 68.2)

First me need to calculate the z score (z). This is given by the equation:

z=\frac{x-\mu_x}{\sigma_x} but μ=64 and σ=19 and n=14,  \mu_x=\mu=64 and \sigma_x=\frac{ \sigma}{\sqrt{n} }=\frac{19}{\sqrt{14} }

Therefore: z=\frac{68.2-64}{\frac{19}{\sqrt{14} } }=0.83

From z table, P(X < 68.2) = P(z < 0.83) = 0.7967

P(X < 68.2) = 0.7967

c) P(X  ≥  65.6)

First me need to calculate the z score (z). This is given by the equation:

z=\frac{x-\mu_x}{\sigma_x}

Therefore: z=\frac{65.6-64}{\frac{19}{\sqrt{14} } }=0.32

From z table,  P(X  ≥  65.6) =  P(z  ≥  0.32) = 1 -  P(z  <  0.32) = 1 - 0.6255 = 0.3745

P(X  ≥  65.6) = 0.3745

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5 0
3 years ago
How do u solve this?? I'm confused
rjkz [21]
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the end product comes out to be 6 = x or (OCD is kicking) x = 6.

hope this helps (; hmu if u need more info
7 0
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