3 years ago

Three teams, A, B and C, play in a competition.

Mathematics

1 answer:

VladimirAG [237]3 years ago

8 0

Answer:

A = 24

B = 8

C = 6

Step-by-step explanation:

4:3 from B:C

8:6

8 games won by B and 6 games won by C.

3:1 from A:B

24:8

24 by A and 8 by B

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weqwewe [10]

Answer:

Slope: 6

Y-intercept: 0

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Step-by-step explanation:

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3 years ago

Construct a confidence interval of the population proportion at the given level of confidence. x = 125, n = 250, 90 % confidence

madam [21]

Answer: 90% confidence interval would be (0.448, 0.552).

Step-by-step explanation:

Since we have given that

x = 125

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So, $\hat{p}=\dfrac{x}{n}=\dfrac{125}{250}=0.5$

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$\hat{p}\pm z\sqrt{\dfrac{\hat{p}(1-\hat{p})}{n}}\\\\=0.5\pm 1.64\sqrt{\dfrac{0.5\times 0.5}{250}}\\\\=0.5\pm 0.0519\\\\=(0.5-0.0519,0.5+0.0519)\\\\=(0.448,0.552)$

Hence, 90% confidence interval would be (0.448, 0.552)

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4 years ago

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Hatshy [7]

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Step-by-step explanation:

I'm pretty sure it's like that

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3 years ago

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