The probability of NOT drawing a yellow marble would be 7/10
X-Y=-3 is the answer.
start by subtracting X from both sides
Y=X+3
-X -X
-X+Y=3
you can’t have a negative X in standard form so you have to divide the entire equation by -1 and you end up with
X-Y=-3
-hope this helps!!
Answer:
9.45
Step-by-step explanation:
3.5 x 2.7 = 9.45
55336533223885848848485858
Answer:
4 ; 32
Step-by-step explanation:
Given that :
Number of observations, n = 9
Let observations = X
ΣX = 360
The mean, (m) is calculated using the formula :
m = ΣX / n
m = 360 / 9
m = 4
Σ(X - m) = 288 (sum of square of deviation )
Variance is calculated using the formula :
[Σ(X - m) / n]
Variance = Sqrt(288 / 9)
Variance = 32
