The following table shows the probability of rolling the numbers 1 through 7 on a fair 7-sided die.
х 1 2 3 4 5 6 7
P(x)1/7 1/7 1/7 1/7 1/7 1/7 1/7
What is the standard deviation of the random variable x, “the number that comes up on the die”

the solution is the point

step-by-step explanation:

we have

> equation a

> equation b

adds equation a and equation b

substitute the value of x in equation b to find the value of y

the solution is the point

14.3

step-by-step explanation:

add all the numbers together.

9 + 12 + 15 + 16 + 17 + 17 = 86

now, divide 86 by how many numbers we have: 6.

86 / 6 = 14.3

3+x

step-by-step explanation: