Not sure what the question is here but if I had to choose it would be the the red thing because that computer looks like it would lag like hell plus it probably has some old lady games on it
Point estimate (average) = $750
Standard deviation = $85
P(X>$825) = ?
Z = (X-mean)/Standard deviation = (825-750)/85 ≈ 0.88
From Z-table, P(X=825) = 0.8106
Therefore,
P(X>$825) = 1 - P(X=$825) = 1-0.8106 = 0.1894 = 18.94%
Percentage of teachers earning more than $825 is 18.94%.
When you want to find the rule, you usually subtract the 1st and 2nd sequence. 1 1/2 - 5/6 is 4/6. So the rule is to add by 4/6. p.s - use simplest form and common denominators when subtracting
4)
pine tree is most numerous on tree farm which is 40%
5)
if 480 trees total,
pine trees = 480 x 0.40 = 192 trees
6)
if 480 trees total,
spruce trees = 480 x 0.30 = 144 trees
(p.s. also firm trees = 144 (same as spruce trees)
Combine the 2 equations:
3x-2y=12
-3x+8y=-6
---------------
6y = 6, which tells us that y=1.
Now subst. 1 for y in the 2nd equation: -3x +8(1) = -6.
Then 14=3x, and x = 14/3.
The solution is (14/3,1).
