Answer:
x mean x-mean (x-mean)^2
4.45 8.74 -4.29 18.44
5.50 8.74 -3.24 10.52
5.50 8.74 -3.24 10.52
6.30 8.74 -2.44 5.97
7.80 8.74 -0.94 0.89
11.0 8.74 2.26 5.09
12.2 8.74 3.46 11.95
17.2 8.74 8.46 71.51
mean = average / (n-1) = 69.95 / (8-1) = 8.74
Ok after you do the above table
Add up the last column that will yield: 134.89
Sample variance = 134.99/(n-1) = 134.99/7 = 19.27
Standard deviation is square root of sample variance sqrt(19.27) = 4.39
Step-by-step explanation:
Answer:
16
Step-by-step explanation:
16 - 10 =4
4/2=2
2*2=
<h2>8</h2>
Answer:
2. 20
Step-by-step explanation:
2. The distance from one base of the prism to the other base of the prism, d = 10 mm
The thickness of each triangle to be used to fill the prism, t = 0.5 mm
The number of triangles needed, <em>n</em>, is therefore;
Where;
<em>d </em>represents the distance between the bases of the prism, <em>t</em>, represents the thickness of each triangle, and <em>n</em> represents the number of triangles it would take to fill up the prism
Therefore;
The number of triangles it would take to fill up the prism, n = 20
Answer:
the answer is 0 hope this helps
Step-by-step explanation:
2(-1)+2
-2+2=0
Answer:
D
Step-by-step explanation:
I did the assignment
hope this helps :)