Answer: ≈ 8 (About 8)
Step-by-step explanation: The actual number if you want is 8.28571428571.
Mark Brainliest if this helped!
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.
Answer:
18.18%
Step-by-step explanation:
(65000-55000)/55000×100
Answer:
7 hundredths
Step-by-step explanation:
add 4 to 6 and take away 3
