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

Here is some fun:

`mean=(\Sigma_(0)^(n)a_r)/(n)=(a_0+a_1+\dots+a_(\infty))/(\infty)`

`</p><p>mean=(4+5+9+2+7+4+3+11)/(8)=(45)/(8)=\boxed{5.625}</p><p>`

And now the real work:

`median=(2+7)/(2)=\boxed{4.5}`

The answer is B. 4,5

Hope this helps.

r3t40

Answer 2

4.5

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