I believe your interval is [-2,2]: all numbers between -2 and +2.
Then the ave. r. of c. on this interval is:
f(2) - f(-2) 4^2 + 2 - {4^(-2) + 2}
------------- = ------------------------------
2 - (-2) 4
16 - (1/16) 15 15/16
= --------------------- = --------------- = 3.98 or 255/64
4 4
X=-2.666666666666666666667
x= -2.67 rounded
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<u><em>Answer⇒⇒⇒40 blue marbles</em></u>
Step-by-step explanation:
First find the probability of a blue marble
P (blue) = number of blue marbles / total marbles
= 2 blue/ ( 5+3+2) total
= 2/10
=1/5
We can use this since we return the marble to the bag each time
We multiply this by 200 for the number of times it is picked
200 * 1/5 = 40
We should expect to pick 40 blue marbles
The given expression is:
So, there are two terms in the expression
1)
2) -5
The constant term is -5.
The co-efficient of
is 4.