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Anastaziya [24]

3 years ago

8

Round 222,977 to the nearest hundred

2 answers:

algol133 years ago

7 0

223,000
the 7 in the ones place added 1 to the 7 in the tens place so that 7 turns into a 8 which turns the 9 to 10 so you 1 to the 2 in the thousands place and the hundreds tens and ones become 0

MAXImum [283]3 years ago

6 0

Since we are rounding to the nearest hundreds place in 222,977 the hundreds would be the 9. The seven behind it would make the number round up since the rule is 0-5 round down 6-9 round up. you round the 9 up to 10 so you add 1 to the next number since you cant have 222,1000. thats wrong . the answer is
223,000

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Step-by-step explanation:

We have that to find our $\alpha$ level, that is the subtraction of 1 by the confidence interval divided by 2. So:

$\alpha = \frac{1-0.95}{2} = 0.025$

Now, we have to find z in the Ztable as such z has a pvalue of $1-\alpha$ .

So it is z with a pvalue of $1-0.025 = 0.975$ , so $z = 1.96$

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The lower end of the interval is the mean subtracted by M. So it is 1.75 - 0.0392 = 1.7108m

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