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Ghella [55]
3 years ago
13

What is 4.125 to the nearest whole number?

Mathematics
2 answers:
Elis [28]3 years ago
5 0
When you are rounding numbers, if the integer to the right is <5, then you keep your rounding number.  If it is >5, then you add 1 place value to your rounding number.

Therefore, if you are trying to round 4.125 to the nearest whole number, you are trying to round it to the ones place, or where the 4 is.  
Because 1<5, 4.125 rounded to the nearest whole number is 4.
weeeeeb [17]3 years ago
4 0
The nearest whole number would be 4
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Answer:

a) the sample size is 400

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Step-by-step explanation:

Given the data in the question;

sample size n = 400

x = 20

p = x / n = 20 / 400 = 0.05

q = 1 - p = 1 - 0.05 = 0.95

a)

n = 400

Hence, the sample size is 400

b) 95% confidence Interval for p;

At 95% confidence interval,

significance level ∝ = 1 - 95% = 1 - 0.95 = 0.05

∝/2 = 0.05 / 2 = 0.025

so, Z critical Value ; Z_{\alpha /2 = 1.96  { from table }

So for Confidence Interval for p;

⇒ p' ± Z_{\alpha /2√( p'q' / n )

we substitute

⇒ 0.05 ± 1.96√( (0.05 × 0.95 ) / 400 )

⇒ 0.05 ± 1.96√( 0.00011875 )

⇒ 0.05 ± 1.96 × 0.010897

⇒ 0.05 ± 0.021358

⇒ ( 0.05 - 0.021358 ), ( 0.05 + 0.021358 )

⇒ ( 0.0286, 0.0714 )

Therefore, 95% confidence Interval for p is ( 0.0286, 0.0714 )

8 0
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A company’s sales increased 17% this year, to $8267. What were their sales last year?
Arisa [49]

Answer:

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Step-by-step explanation:

3 0
3 years ago
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iVinArrow [24]

Answer: 232 pages

Step-by-step explanation:

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Number of pages = 180/2 = 90

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Number of pages with 3 - digits = 399/3 = 133

Therefore, the total number of pages the book has is :

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6 0
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Oksana_A [137]

Experimental Probability is use to help make predictions by using materials that relate to the that probability so see if it could happen in real life.

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8 0
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Answer:

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