Perimeter = 2*pi*r
= 2*22/7*35
=220cm
I HOPE IT HELPED
The sample space of an experiment is the set of all possible outcomes for that experiment. You may have noticed that for each of the experiments above, the sum of the probabilities of each outcome is 1. This is no coincidence. The sum of the probabilities of the distinct outcomes within a sample space is 1.
Answer:
9
Step-by-step explanation:
The answer to | − 12 + 3 | is 9 because if you add -12 + 3, you get -9. However, since it is the <em>absolute value</em>, we would make it the same number but positive.
Hope this helped! :)
Answer: The variance of the data is 0.25, therefore second option is correct.
Explanation:
From the given graph it is noticed that the graph is symmetric along x = 4 or it is a bell shaped graph. So, the data follows the normal distribution.
The graph of normal distribution is bell shaped graph symmetric along the mean. The graph of normal distribution is shown below.
Since the given graph is symmetric along x = 4 therefore the mean of the data is 4.
Let the variance be
. So, the given data follows normal distribution with mean 4 and variance
.
In the below graph the point immediate left to the mean is
and in the given graph it 3.5
![\mu-\sigma=3.5](https://tex.z-dn.net/?f=%5Cmu-%5Csigma%3D3.5)
![4-\sigma=3.5](https://tex.z-dn.net/?f=4-%5Csigma%3D3.5)
![\sigma=0.5](https://tex.z-dn.net/?f=%5Csigma%3D0.5)
![\sigma^2=0.25](https://tex.z-dn.net/?f=%5Csigma%5E2%3D0.25)
Therefore, the variance of the data is 0.25, therefore second option is correct.
Let the angle = x
Using the figure below, to find x, setup the equation:
x+70+x=180
2x+70=180
2x=110
x=55°
So the ball hits the surface at 55° and bounces back at 55°.
Answer: 55°