Answer:
21
Step-by-step explanation:
You have to find the square root.
Answer:
Step-by-step explanation:
Sample variance when large number of samples are drawn we have tend to become a normal distribution.
Variance of the sample is different since variance
Var(x) = E(x^2)-{E(x)}^2
is the formula used for finding the variance of any sample.
But sampling distribution of variance requires repeating this process with the different samples several times.
So option A is not right
B is also not correct, C is wrong
D.The sampling distribution of the mean requires multiple samples to be compared. However, in this situation you are looking for the variance, so finding the sample variance is the same as investigating the sampling distribution of the variance.
is correct
Answer:
<u>1</u><u> </u><u> </u><u> </u><u>x</u><u> </u><u> </u>( a + b ) × h
2
<u>1</u><u> </u>x ( 9× + 4 + 12× -2) x h
2
<u>1</u> x ( 13× + 10× ) × h 7x + 8= 15× a squared + b squared is equals to c squared
2 10 x + × = 15×
<u>1</u><u> </u>x ( 23x ) x h 100× + × = 225
2 x = 225 - 100
x = 125
x = 11.1803398875
x = 11.2
11.5 x h
11.5 x 11.2
= <u>128</u><u>.</u><u>8</u> height is 11.2
Step-by-step explanation:
Formula for trapezium half multiplied by the top and the bottom multipliedby height. As u constantly glance at the
question we dont know the height .adjacent plus opposite gives u hypotenuse .
It would be 220,000 because 280,800-64,800= 216,000 rounded to the nearest ten thousand is 220,000
Answer:
The approximate value is
Step-by-step explanation:
Let
----> the measure of angle in degrees
we have that
Using a calculator
Find the measure of angle