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geniusboy [140]
3 years ago
5

100 points / please help! i have no idea what im doing...

Mathematics
2 answers:
IRISSAK [1]3 years ago
8 0
The answer:
b)5:16 as there is 5 orange squares and 16 white
Charra [1.4K]3 years ago
7 0

Answer:

b) 5:11

Step-by-step explanation:

count the orange squares and the white squares

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Read 2 more answers
In 2012, about 24% of high-school seniors reported binge drinking (defined as five or more drinks in a row in the past two weeks
Artist 52 [7]

Answer: (0.24 - 1.96*0.019, 0.24 + 1.96*0.019)

Step-by-step explanation:

We know that the confidence interval population proportion (p) is given by :-

\hat{p}\pm z*\cdot SE

, where \hat{p} = sample proportion.

z* = Critical value (Two -tailed)

SE = standard error

Given : In 2012, about 24% of high-school seniors reported binge drinking (defined as five or more drinks in a row in the past two weeks), a substantial drop since the late 1990s.

\hat{p}=0.24

SE = 0.019

Significance level =\alpha=1-0.95=0.05

Two-tailed value corresponds for \alpha=0.05 :

z*=1.96   [Using z-table]

Now, the 95% confidence interval for the proportion of high-school seniors in the sample who would report binge drinking will be :-

0.24\pm (1.96)\cdot (0.019)=(0.24-1.96\times 0.019,\ 0.24+1.96\times 0.019)

Hence, the correct answer = (0.24 - 1.96*0.019, 0.24 + 1.96*0.019)

8 0
3 years ago
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