Answer:
Lab = 23%
Test 1 = 18.225%
Teas 2= 20.925%
Exam = 25.5%
Total = 87.65%
Step-by-step explanation:
Considering you have the percentages laid out all you have to do is multiply each score with the percentage.
This is my kinda language.
fifty four= 54
less than: -
one-third: /3
number: n
n/3-54 <=== the expression
I hope this helps!
~kaikers
The variance (σ^2) is the square of the differences between the mean and each data.
The problem says that the program reports a mean of 31.5 and a standard deviation of 2.5, so you have to elevate the standar deviation to the power 2:
σ^2 = (2.5)^2
σ^2 = 6.30
<span>
What is the variance of the data?
</span> The variance of the data is 6.30, so the the correct option is D.
