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erastovalidia [21]
3 years ago
8

5/6-1/4 rrrggshejejjdkejeje

Mathematics
2 answers:
klio [65]3 years ago
5 0
The LCF is 12 so multiply 5/6x2 and 1/4x3 to get 10/12-3/12=7/12 and since 7/12 is simplified 7/12 is your answer
ollegr [7]3 years ago
5 0
Calculate 5 divide by 6
And 1 divide by 4 then when you get the total of those two answers subtract it and you'll get your answer
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Give a 98% confidence interval for one population mean, given asample of 28 data points with sample mean 30.0 and sample standar
klio [65]

We have a sample of 28 data points. The sample mean is 30.0 and the sample standard deviation is 2.40. The confidence level required is 98%. Then, we calculate α by:

\begin{gathered} 1-\alpha=0.98 \\ \alpha=0.02 \end{gathered}

The confidence interval for the population mean, given the sample mean μ and the sample standard deviation σ, can be calculated as:

CI(\mu)=\lbrack x-Z_{1-\frac{\alpha}{2}}\cdot\frac{\sigma}{\sqrt[]{n}},x+Z_{1-\frac{\alpha}{2}}\cdot\frac{\sigma}{\sqrt[]{n}}\rbrack

Where n is the sample size, and Z is the z-score for 1 - α/2. Using the known values:

CI(\mu)=\lbrack30.0-Z_{0.99}\cdot\frac{2.40}{\sqrt[]{28}},30.0+Z_{0.99}\cdot\frac{2.40}{\sqrt[]{28}}\rbrack

Where (from tables):

Z_{0.99}=2.33

Finally, the interval at 98% confidence level is:

CI(\mu)=\lbrack28.94,31.06\rbrack

4 0
1 year ago
Find the largest of 3 consecutive odd integers that have a sum of -75
Vika [28.1K]
Odd integers are 2 apart

they are
x,x+2,x+4

sum is -75

x+x+2+x+4=-75
3x+6=-75
minus 6 both sides
3x=-81
divide both sides by 3
x=-27
x+2=-25
x+4=-23

the largest is the farthest to right on a number line
largest is -23
3 0
3 years ago
What is 72:75 as as fraction
Natalija [7]
72/75 is 72:75 written as a fraction, it can't be simplified.
8 0
3 years ago
Read 2 more answers
What is 5 divided by 312 the long way
ehidna [41]
Ask yourself:How many times does 5 go into 31? Then ,how many times does 5 go into 12? It will equal 62 R2
3 0
2 years ago
Read 2 more answers
What is the slope of a line passing through the points (2, 5) and (0, −4) ? Enter your answer in the box.
Readme [11.4K]
Ok so the equation for this is rise over run or y2-y1/x2-x1 (or y2-y1 over x2-x1)
plug your coordinates in: -4-5/0-2
-4 - 5 = -9
0-2=-2
-9/-2
But they most likely want a positive so slope should be 9/2

4 0
3 years ago
Read 2 more answers
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