Question

What is the median of the data set:

4, 5, 9, 2, 7, 4, 3, 11
a 4
b 4.5
c 5
d 9

Answer 1

Answer:

4.5

Step-by-step explanation:

because 2 3 4 4 5 7 9 11

4.5 is the middle number, between 4 and 5 since you find what the middle number is

Answer 2

Here is some fun:

$mean=\frac{\Sigma_{0}^{n}a_r}{n}=\frac{a_0+a_1+\dots+a_{\infty}}{\infty}$

$

mean=\frac{4+5+9+2+7+4+3+11}{8}=\frac{45}{8}=\boxed{5.625}

$

And now the real work:

$median=\frac{2+7}{2}=\boxed{4.5}$

The answer is B. 4,5

Hope this helps.

r3t40