Answer:
$53
Step-by-step explanation:
Write an equation:
(3·3.25) + (3·3.75) + (4·5.75) + (4·2.25)
Simplify
9.75 + 11.25 + 23 + 9 = 53
Hello from MrBillDoesMath!
Answer:
40
Discussion:
4+4+4+4+4+4+4+4+4+4 (*)
There are 10 4's in (*) so
(*) = 4 * 10 = 40
Thank you,
MrB
Answer:
Step-by-step explanation:
= +∞ + 0
= +∞
= -1 + +∞
= +∞
Answer:
See explanation below.
Step-by-step explanation:
Assuming the distribution on the figure attached. We have a distribution skewed to the right.
We can calculate the deviation with the following table:
Class frequency(f) (Xm) Midpoint f*Xm fXm^2
50-90 28 70 1960 137200
90-130 32 110 3520 387200
130-170 18 150 2700 405000
170-210 8 190 1520 288800
210-250 8 230 1840 423200
290-330 2 310 620 192200
410-450 2 430 860 369800
Total 98 13020 2203400
We are assuming the frequencies that;s important to mention.
We can calculate the sample variance with the following formula:
And if we replace we got:
And then the standard deviation is given bY:
So then the best answer would be : 70
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⠀⠀⠀⠀⠀⠀⠀⠛⠿⠛thanks for the 50 points