From the given discrete distribution, we have that:
<h3>What are the mean, the variance and the standard deviation of a discrete distribution?</h3>
- The mean of a discrete distribution is given by the sum of each outcome multiplied by it's respective probability.
- The variance is given by the sum of the difference squared between each observation and the mean, divided by the number of values.
- The standard deviation is the square root of the variance.
In this problem, the distribution is:
Hence, the mean is:
The variance is:
The standard deviation is:
More can be learned about discrete distributions at brainly.com/question/24855677
Answer: is x=4
Simplifying
5x + 4 = 24
Reorder the terms:
4 + 5x = 24
Solving
4 + 5x = 24
Solving for variable 'x'.
Move all terms containing x to the left, all other terms to the right.
Add '-4' to each side of the equation.
4 + -4 + 5x = 24 + -4
Combine like terms: 4 + -4 = 0
0 + 5x = 24 + -4
5x = 24 + -4
Combine like terms: 24 + -4 = 20
5x = 20
Divide each side by '5'.
x = 4
Simplifying
x = 4
Step-by-step explanation:
Answer: 0
Step-by-step explanation:
56 + (-56) is the same as 56 - 56 which equals zero
<h3>
Answer:</h3>
29. e = D/(3f²)
30. k=-4, x=41 . . . . matches the 2nd selection
<h3>
Step-by-step explanation:</h3>
29. Multiply by the inverse of the coefficient of e. That coefficient is 3f², so you divide by that quantity.
... D = e(3f²)
... D/(3f²) = e . . . . . matches the first choice
___
30. You want to solve for k and use it with a different y-value.
... y = kx
... -96 = k·24
... -96/24 = k = -4
For y = -164, you have
... -164 = -4·x
... -164/-4 = x = 41
The coefficient of variation is -4, x is 41.
Answer:
Step-by-step explanation:
The sum of two even numbers is an even number