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: Samantha
Step-by-step explanation:
Two ways you could solve this percents or fractions.
Percents
Peter: 4/5 = 80%
Samantha: 7/8 = 87.5%
Fractions
Set the denominator equal to each other
the common denominator would be a multiples to both 5 and 8 which is 40.
Peter: 4/5 = 32/40 because 5 times 8 is 40 and what you do to the denominator you do to the numerator so 4 times 8 is 32.
Samantha: 7/8 = 35/40 because 8 x 5 = 40 and 7 x 5 = 35.
Then compare and 35/40 is greater so Samantha.
Answer:
x- 5
y- 6
Step-by-step explanation:
A proportional relationship is a relationship for which a proportional constant y/x exists and for which it passes through (0,0) or the origin.
The proportional constant is 6.
18/3=6
42/7=7
54/9=6
Thus the filled in blanks should be x 1, 3, 5, 7, 9 and y 6, 18, 30, 42, 54.
Answer:
the anwser is 27
Step-by-step explanation:
glad I could help!