-3 = 7-10
Subtract 10 from 7 and you will get -3
So 110% of x is 880 means 1.1x=880
so 1.1x=880
multiply both sides by 10
11x=8800
divide both sides by 11
8800=88 times 100 88=8 times 11
8800/11=800
x=800
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:
The total amount that they can spend on their food bill is $41, including the delivery charge of $6. The equation below represents the situation, where x is the cost of each friend's meal.
Step-by-step explanation:
Answer:
I think the answer is - 2 + ( 3/4) =2 3/4
Step-by-step explanation:
first of all we can take out the =-1 1/4 and - 1 3/4 email it's not it the correct place also - 2 1/4 because of the 1/4
