Answer:
And the deviation would be:
Step-by-step explanation:
For this case we have the following distribution given:
X 0 1 2 3 4 5 6
P(X) 0.3 0.25 0.2 0.12 0.07 0.04 0.02
For this case we need to find first the expected value given by:
And replacing we got:
Now we can find the second moment given by:
And replacing we got:
And the variance would be given by:
And the deviation would be:
Answer:
y = 4/9
Step-by-step explanation:
2(−2x+1)−5x+2 = 0
2*(−2x) +2*(1)−5x+2 = 0
-4x +2 -5x +2 = 0
-9y +4 = 0
-9y = -4
9y = 4
y = 4/9
We have 48 meters.
We need to increase it by 20%.
That means we have 48 and then we increase it by 20%.
That can be expressed as:
48 + (48 * 20%)
Now, another way to write that would be:
48 * 120%
Now, 120% is nothing but 120/100. This can even be simplified to 1.2.
48 * 120%
= 48 * 1.2
= 57.6
48m increased by 20% is 57.6m.
Answer:
your answer is x=-3 y=6 z=-4
x+y+(-1)=
Step-by-step explanation:
there you go