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Dmitry_Shevchenko [17]
3 years ago
5

What is half of 55? I need it now

Mathematics
2 answers:
mario62 [17]3 years ago
3 0
To find the half of any number you just have to divide that number by 2. Lets do it, and then check our work:-

55 ÷ 2 = 27.5
The half of 55 is, 27.5.

CHECK OUR WORK:-

27.5 × 2 = 55
We were RIGHT!!!

So, the half of 55 is 27.5.

Hope I helped ya!! xD
Mariana [72]3 years ago
3 0
Divide 55 by 2 55/2 which eaquals 27.5 or 27 1/2 depending on what your teacher wants your answer in.

Hope this helps 
:3
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A growth-mindset researcher plans to take an SRS of 200 teenagers from the population of teenagers in North America to see what
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Answer:

The mean of the sampling distribution of p is 0.75 and the standard deviation is 0.0306.

Step-by-step explanation:

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For a proportion p in a sample of size n, the sampling distribution of the sample proportion will be approximately normal with mean \mu = p and standard deviation s = \sqrt{\frac{p(1-p)}{n}}

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This means that p = 0.75

Sample of 200.

This means that n = 200.

What are the mean and standard deviation of the sampling distribution of p?

By the Central Limit Theorem

Mean \mu = p = 0.75

Standard deviation s = \sqrt{\frac{0.75*0.25}{200}} = 0.0306

The mean of the sampling distribution of p is 0.75 and the standard deviation is 0.0306.

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Osvoldo has a goal of getting at least 30% of his grams of carbohydrates each day from whole grains. Today, he ate 220 grams of
pochemuha

Answer:

Answer: Osvoldo did not meet his goal.

Step-by-step explanation:

Total carbohydrate ate by Osvoldo = 220 g

carbohydrate from grains = 55 g

Percentage of carbohydrate of grain is

\begin{gathered}=\dfrac{\text { carbohydrate taken from grains}}{\text {Total carbohydrate}} \times 100\\\\= \dfrac{55}{220} \times 100= 25 \%\end{gathered}

=

Total carbohydrate

carbohydrate taken from grains

×100

=

220

55

×100=25%

Goal of getting carbohydrate from grains = at least 30%

but he ate only 25% of carbohydrate

Hence, Osvoldo did not meet his goal as he ate less carbohydrate than his goal.

8 0
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