The standard error of the mean is given by:
![\frac{\sigma}{\sqrt[]{n}}](https://tex.z-dn.net/?f=%5Cfrac%7B%5Csigma%7D%7B%5Csqrt%5B%5D%7Bn%7D%7D)
where sigma is the standard deviation and n is the sample size. In this case the sample size is 10 and the standard deviation is 0.657, then the standard error is:
![\frac{0.657}{\sqrt[]{10}}=0.208](https://tex.z-dn.net/?f=%5Cfrac%7B0.657%7D%7B%5Csqrt%5B%5D%7B10%7D%7D%3D0.208)
Therefore the standard error is $0.208.
Answer:
40%
Step-by-step explanation:
2cm loss from 5cm.
2 fifths of the water has gone.
2/5 given as 100ths is is calculated by multiplying both top and bottom by 20
2x20 =40
5x20= 100
40/100
or 40%
Answer:
Kylie explained that (–4x + 9)2 will result in a difference of squares because (–4x + 9)2 = (–4x)2 + (9)2 = 16x2 + 81. Which statement best describes Kylie's explanation? Kylie is correct. Kylie correctly understood that it is a difference of squares, but she did not determine the product correctly.
Answer:
7 hr * 12 days = 84 hours
10*84 = 840 man-hrs to build the wall
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14 men * 8 hr = 112 man-hrs/day
840/112 = 7.5 days
Step-by-step explanation:
Answer:
Sure here O- cookie
Step-by-step explanation:
