<span>valid. She used a representative sample
</span>because she correctly found the average and 18,000 is a reasonable number to get for a the problem
The bottom left option is when it is reflected over the x axis, the second to last option on the left is when it is reflected of the y axis, and the middle option is when it is reflected over the line y = x
Hope this helps :)
Answer:
Following are the solution to the given question:
Step-by-step explanation:
Let
when i is the element itself is allocated to 'j' 
Min

Subject to:
