Answer:
Would be the 3rd one I believe
Step-by-step explanation:
It is B just use a calculator hope it helped
The answer to this question is:
Find the product of the complex number and its conjugate. 1 + 2i ??<span>(1+2i)
(1-2i)=
1^2+2^2=
5
Hoped This Helped, Trevorhardy
Your Welcome :)</span>
Answer:
Mean =13, Median=9, Mode =7, Range=43
Step-by-step explanation:

(1)Mean


<u>Median</u>
First we arrange the sales in ascending order
7,7,7,8,9,9,10,11,12,50
Since there are two terms in the middle, the Median =(9+9)/2 =9
<u>Mode</u>
The mode is the number of sales with the highest frequency.
Mode =7
<u>Range</u>
Range =Highest Value - Lowest value =50-7=43
(b)Mean =13, Median=9, Mode =7, Range=43
The Median seems to best represent the ten numbers. this is as a result of the fact that the value of the Mean and range were affected by the outlier number(50).
The School should therefore order T-Shirts in the range of the Median.