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lbvjy [14]
3 years ago
15

The dot plot below shows the number of books 26 students read in a month: Is the median or the mean a better center for this dat

a and why?
A.Mean; because the data is skewed and there are outliers
B.Mean; because the data is symmetric and there are outliers
C.Median; because the data is skewed and there are outliers
D.Median; because the data is symmetric and there are outliers

Mathematics
1 answer:
Stella [2.4K]3 years ago
7 0

Answer:

B

Step-by-step explanation:

The data is symmetric, and the three 10 count as outliers.

Thank you! Have a nice day!

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Answer:

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div(F(x,y)) = dF(x,y)/dx + dF(x,y)dy = dhxy/dx + d(x - yi)/dy = hy - i

So, ∫∫divF(x,y).dA = ∫∫(hy - i).dA

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Since we are integrating along the boundary of the square given by −1 ≤ x ≤ 1, −1 ≤ y ≤ 1, then

∫∫divF(x,y).dA = ∫₋₁¹∫₋₁¹hydxdy - ∫₋₁¹∫₋₁¹idxdy

= h∫₋₁¹{y²/2}¹₋₁dx - i∫₋₁¹[y]₋₁¹dx

= h∫₋₁¹{1²/2 - (-1)/2²}dx - i∫₋₁¹[1 - (-1)]dx

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= - 2i[x]₋₁¹

= 2i[1 - (-1)]

= 2i[1 + 1]

= 2i(2)

= 4i  

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