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.
What is the slope of y = - x + 7
m= (-1)
which is equal to the slope of the equation .
Answer:
1620
Step-by-step explanation:
180(n)-360=interior angle sum
180(11)-360=1620
n = number of sides
You also can divide it by 11 to know each interior angle.
1620/11=~147.27
Answer:
D .8
Step-by-step explanation:
hypotenuse (h) = 10
base (b) = 6
perpendicular (p) = a= ?
We know by using Pythagoras theorem we get
p = √ h² - b²
a = √ 10² - 6²
a = √ 64
a = 8
Hope it will help :)
10 time as much of something is basically just multiplication, so all you have do is multiply 60x10 which equals 600 :)
