Variance is the standard deviation squared but we're not going to use that now. Let's first calculate the mean:
mean = (17+13+13+22+11+20)/6 = 16.
Now for each value, let's see how far it is from this mean. We'll square these distances and average them. That's our variance.
17 distance 1 squared = 1
13 distance 3 squared = 9
13 distance 3 squared = 9
22 distance 6 squared = 36
11 distance 5 squared = 25
20 distance 4 squared = 16
Now average these outcomes:
variance = (1+9+9+36+25+16)/6 = 16.
So the variance by coincidence is the same as the mean.
Answer C is your answer.
If that yield sign were a equilateral triangle, then it would be a regular polygon. In that triangle, each angle would equal 120°.
Answer:
3,266.53
Step-by-step explanation:
Rounded to the nearest 0.01 or
the Hundredths Place.
Answer:
24/100 x 25 =6
Step-by-step explanation:
Since it is a right triangle, then a^2+b^2=c^2, and a=sqrt(c^2 - b^2),
a=sqrt(361-144)=14.73
the answer is 14.73