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bija089 [108]
3 years ago
12

Jocelyn has read 156 pages of a book. This is 4/5 of the entire book. How many pages does the book have?

Mathematics
1 answer:
Mashutka [201]3 years ago
4 0
<span>The book has 196 pages. 
To prove that 4/5 of 196= 156


</span>
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melomori [17]

Answer: 0.0158

Step-by-step explanation:

Given : The data for the United States is that out of 1,000 sampled, 470 indicated yes, they felt political news was reported fairly.

According to the given information we have,

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Sample proportion: \hat{p}=\dfrac{470}{1000}=0.47

The standard error for proportion is given by :-

S.E.=\sqrt{\dfrac{\hat{p}(1-\hat{p})}{n}}

S.E.=\sqrt{\dfrac{0.47(1-0.47)}{1000}}

S.E.=\sqrt{0.0002491}

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[Rounded to the nearest four decimal places.]

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3 years ago
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Anna35 [415]

Answer:

3.4

Step-by-step explanation:

Standard deviation of a population is defined as:

σ² = ∑(xᵢ − μ)² / n

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It's not clear which one we have, so let's calculate both.

First, we must find the mean.

μ = (5+12+15+10+12+6+8+8) / 8

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That's not one of the answers, so let's try the standard deviation of a sample instead of a population.

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3 years ago
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Answer:

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So the angle of x is 80°

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