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ioda
3 years ago
13

Troy wants to ride his bicycle 35 miles this week. He has already ridden 11

Mathematics
1 answer:
ANEK [815]3 years ago
5 0

Answer:y=35x+11

Step-by-step explanation:y=Mx+b

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Which is a positively skewed distribution?
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to me it looks like B but i could be wrong

Step-by-step explanation:

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A container has peppermint gum and spearmint gum. There are 18 pieces of peppermint gum in the container and the ratio of pepper
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How many more cents per item is 3 items for $10 than 2 items for $5? Express your answer to the nearest whole number.
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5 0
3 years ago
g You are planning an opinion study and are considering taking an SRS of either 200 or 600 people. Explain how the sampling dist
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Answer:

By the Central Limit Theorem, both would be approximately normal and have the same mean. The difference is in the standard deviation, since as the sample size increases, the standard deviation decreases. So the SRS of 600 would have a smaller standard deviation than the SRS of 200.

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}}.

For a skewed variable, the Central Limit Theorem can also be applied, as long as n is at least 30.

For the sampling distribution of size n of a sample proportion p, the mean is p and the standard deviation is s = \sqrt{\frac{p(1-p)}{n}}

Differences between SRS of 200 and of 600

By the Central Limit Theorem, both would be approximately normal and have the same mean. The difference is in the standard deviation, since as the sample size increases, the standard deviation decreases. So the SRS of 600 would have a smaller standard deviation than the SRS of 200.

6 0
3 years ago
Which of the following expressions is the conjugate of a complex number with −5 as the real part and 4i as the imaginary part? 5
ladessa [460]
The mathematical expression of the given complex number above is -5 + 4i. The conjugate of this complex number is that which has an opposite operation. The given is an addition operation. That is -5 - 4i. Therefore, the answer is the third among the choices. 
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3 years ago
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