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oksian1 [2.3K]
3 years ago
11

A community center is collecting blankets. Last year the center collected 81 blankets. This year they were able to collect 102 b

lankets. By what percentage did the community center increase the amount of blankets that they collected?
Very sorry I can't download any links you give me, sorry.
Mathematics
2 answers:
nekit [7.7K]3 years ago
7 0
The answer is 79.4%...
Paraphin [41]3 years ago
4 0

Answer:

79.4% (when rounding to the nearest tenth)

Step-by-step explanation:

81:102 = x:100

Cross multiple to get 8100=102x

Divide 8100 by 102

Round to the nearest tenth to get 79.4%

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In a large population, 82% of the households have cable tv. A simple random sample of 225 households is to be contacted and the
anzhelika [568]

Answer:

The mean of the sampling distribution of the sample proportions is 0.82 and the standard deviation is 0.0256.

Step-by-step explanation:

The Central Limit Theorem estabilishes that, for a normally distributed random variable X, with mean \mu and standard deviation \sigma, the sampling distribution of the sample means with size n can be approximated to a normal distribution with mean \mu and standard deviation s = \frac{\sigma}{\sqrt{n}}.

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The mean of the sampling distribution of the sample proportions is 0.82 and the standard deviation is 0.0256.

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Step-by-step explanation:

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Therefore, the best prediction for the amount of numbered cards that will be drawn during the game is 30.

3 0
2 years ago
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