Answer:
$51.75
Hope this helps!
(Please mark brainliest!)
Answer: A. sqrt of 500.
Step-by-step explanation: If you simplify the sqrt of 500, you will get 10 sqrt of 5
Answer:
The weighted average is of 69.94.
Step-by-step explanation:
Weighted average:
The weighed average is found multiplying each grade by its respective weight.
The grades, and weights are:
67 on the lab, with a weight of 23% = 0.23
69 on the first major test, with a weight is 21.5% = 0.215
85 on the second major test, with a weight is 21.5% = 0.215.
63 on the final exam, with a weight of 34% = 0.34.
Weighted average:
![A = 0.23*67 + 0.215*69 + 0.215*85 + 0.34*63 = 69.94](https://tex.z-dn.net/?f=A%20%3D%200.23%2A67%20%2B%200.215%2A69%20%2B%200.215%2A85%20%2B%200.34%2A63%20%3D%2069.94)
The weighted average is of 69.94.
Answer:
97.75 %
Step-by-step explanation:
You score 1 standard deviation above the mean
a) we have from left tail up to the mean 50 % of all values
b) We have in the interval [ μ - σ ; μ + σ ] 95.5 % of all possible values, if we divide that 95.5 by 2 we get 47.75 %, the part of the values that correspond to the right, then in order to get the % of students scored lower we add
50 + 47.75 = 97.75 %
So you can say that the porcentage of students that scored lower than you is 97.75 %