Answer:
90
Step-by-step explanation:
The sum of squares of the deviation from mean=sum(x-xbar)²=?
x
12
6
15
9
18
12
xbar=sumx/n
xbar=(12+6+15+9+18+12)/6=72/6=12
x x-xbar (x-xbar)²
12 12-12=0 0
6 6-12=-6 36
15 15-12=3 9
9 9-12=-3 9
18 18-12=6 36
12 12-12=0 0
sum(x-xbar)²=0+36+9+9+36+0=90
So, the sum of squares of the deviations from the mean is 90.
Answer:
Probability of picking an even and then even number =
Step-by-step explanation:
Probability of picking a card with even number,
P(even 1) = =
=
=
Followed by picking a card which is even without putting the first card back.
So an even card is to be picked out of remaining 3 cards.
P(even 2) =
=
Now probability of both events = P(even 1) × P(even 2)
=
=
Therefore, probability of both the events will be .
Answer:
Hope is Help
Step-by-step explanations
That's all I know
Answer:
14
Step-by-step explanation:
its not 14 but there is no answer to it because there are multipul equel signs