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Alex73 [517]
2 years ago
15

You are told that in a sample of size 225 the mean is 48. 5 and the standard deviation is 1. 8. The study is reported with 90% c

onfidence level. Explain how to determine if 48. 8 is within the confidence interval.
Mathematics
1 answer:
kirill115 [55]2 years ago
7 0
Yes it’s between the confidence interval I think I hope I’m right
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A bakery sells packages of 10 bagels for $3.69. If the bakery starts selling the bagels in packages of 12, how much would you ex
katen-ka-za [31]
$4.43 rounded because you would divide 3.69 by 10 and multiply that by 12.

6 0
3 years ago
4-4x-9x how many terms
11Alexandr11 [23.1K]

Answer:

3 terms

Step-by-step explanation:

4 4x and 9x

5 0
3 years ago
At Garland School,
ankoles [38]

490 x 2/5 = 980/5 = 196 girls at Garland


945 x 5/7 = 4725/7 = 675 girls at Bowood


Bowood has more girls:

675-196 = 479 more

8 0
2 years ago
Please solve and explain for number 2
chubhunter [2.5K]
The ratios as fractions are 6/8 and 9/11.
Since they are not compare because they have different denominators you must find the Least Common Multiple of the two fractions.
Since 8 and 11 both can go into 88, we can use that as our denominator.
6/8 times 11/11 equals 66/88     and    9/11 times 8/8 equals 72/88.
66/88 is less than 72/88.

Therefor, Mix B is the reddest mixture.

Hope this helped!! :)
8 0
3 years ago
At Greenwood Landscaping, rock costs $47.50 per ton. How much would 2.5 tons cost?
Grace [21]

Answer:

Hey!

Your answer is $118.75!

Step-by-step explanation: How did I get this?

<u>STEP 1:</u> So we know that for a ton of rock costs us $47.50...

To get 2 tons all we have to do is to MULTIPLY $47.50 by 2...

<em><u>(47.50 x 2 = 95)</u></em>

<u>STEP 2: </u>So for $95, you will get 2 tons of rock!

Now to get the .5 tons of rock in price form, we have to get the price of the whole 2.5 tons and DIVIDE BY 2

<em><u>(47.50 ÷ 2 = 23.75)</u></em>

<u>STEP 3:</u> So now we have the costs for 2 tons and the price for HALF a ton.

What we do now is easy...we ADD THE VALUES TOGTHER!

<em><u>(95 + 23.75 = $118.75)</u></em>

The result of $118.75 after adding them together is the PRICE OF 2 TONS!

<u>I HOPE THIS HELPED YOU!</u>

<u />

4 0
3 years ago
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