2 years ago

Pls help snaehdusjshdgydudjdjdhd

Mathematics

1 answer:

adoni [48]2 years ago

4 0

Answer:

17 games

Step-by-step explanation:

There are 68 games in total. Assuming that the number of games watched are equally divided between 4 people, then each person watches 68/4 = 17 games.

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Iteru [2.4K]

Answer: D

Step-by-step explanation:

Proof see picture

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3 years ago

A teacher claims that the proportion of students expected to pass an exam is greater than 80%. To test this claim, the teacher a

erica [24]

Answer:

z=-1.591

Step-by-step explanation:

Null Hypotheses,

$H_0 : p=0.8\\H_a: p>0.80$

So we use z-test for one population proportion (right-tailed test)

According to this informaton, we defined that

$\alpha=0.05$

$z_c=1.64$ (critical value)

So our Rejection region is $R={z:z>1.64}$

$z=\frac{\bar{p}-p_0}{\sqrt{p_0(1-p_0)/n}} = \frac{0.755-0.8}{\sqrt{0.8(1-0.8)/200}}=-1.591$

Not rejection.

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3 years ago

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alexandr402 [8]

Answer:

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3 years ago

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WILL MAKE BRAINLYEST

Valentin [98]

Answer:

none

Step-by-step explanation:

3−12+223−56=158

216−216=0

56+216=272

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Estimate. Then record the product $149 x 5

pashok25 [27]

149 will be rounded to 150 so 150×5= 750

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3 years ago