The variance is the total of the squared distances of the given data from the mean.
This can be calculated through the equation,
σ² = summation of X² / N - μ²
where σ² is the variance X's are the data, N is the number of terms, and μ is the mean.
summation of X² = 100² + 100² + 120² + 120² + 180² = 81200
N = 5
μ = (100 + 100 + 120 + 120 + 180) / 5
μ = 124
Substituting these values to the equation for variance,
σ² = (81200/5) - 124² = 864
Thus, the variance is equal to 864.
I'm pretty sure the answer is 15 base-ten blocks
Answer:
Step-by-step explanation:
f(-7) = 5(-7) - 3 = -35 - 3 = -38
<span>2x + 5 =8x
6x = 5
x = 5/6
12x = 12(5/6) = 10</span>
Answer:
The absolute value of -5 is...5
Step-by-step explanation:
