Answer:
--- Variance
Step-by-step explanation:
Given
Solving (a): Calculate the mean.
The given data is a grouped data. So, first we calculate the class midpoint (x)
For 51 - 58.
For 59 - 66
For 67 - 74
For 75 - 82
For 83 - 90
So, the table becomes:
The mean is then calculated as:
-- approximated
Solving (b): The sample variance:
This is calculated as:
So, we have:
-- approximated
Answer:
The answers are 23, 9,200 and 26, 10,400
Step-by-step explanation:
Answer:
n*n*n*n*n*n*n
Step-by-step explanation:
n^4 * n^3 = n^7 = n*n*n*n*n*n*n
To solve for the area of the triangle
Use the formula 1/2(base *height)
1/2 * 17* 4
68/2
34
I believe the area of the triangle is therefore 34ft
Answer:
sin= opposite leg/hypotenuse
Sin(a)=12/37
Step-by-step explanation: