Since you can see that the triangle is isosceles triangle the length of the 2 side will be same
2n+9=7n-18
9+18=7n-2n
27=5n
n=27/5
Using <em>statistical concepts</em>, it is found that the standard deviation of the probability distribution is of

When a constant is multiplied to each data in a variable, both the <u>mean and the standard deviation</u> are multiplied by the constant.
In this problem, the standard deviation, which is the square root of the variance, is of:

The price of each is of $1.5, hence:

A similar problem is given at brainly.com/question/25718546
<span>3.14×10^-3 = 0.00314
hope that helps</span>
Answer:
4. 6/15
Step-by-step explanation:
5. 5/3 is the an answer