You will not invited
Mean is best measure of average.
Given:
Class rank is at least = 90th percentile
Rank 30 out of 128 student
Find:
1. Invited for membership or not
2. Best measure of average
Computation:
Rank in total = [(100 - Percentile)(Total students)]/100
30 = [(100 - Percentile)(128)]/100
3000 = [(100 - Percentile)(128)]
23.4375 = 100 - Percentile
Percentile = 100 - 23.4375
Percentile = 76.5625
Since Percentile smaller than 90, So, you will not invited to membership
Mean is best measure of average.
Learn more:
brainly.com/question/6033034?referrer=searchResults
I'm not 100% sure, as we don't do this at school here, but I think its :
1) 3 units right, 2 units down
2) (x, y) > (x-12, y+3)
3) (x, y) > (x+9, y-8)
Step-by-step explanation:
9x - 2 = 5x + 54
9x - 5x = 54 + 2
4x = 56
<u>x = 14</u>
(9x - 2) + (10y + 6) = 180
(9 · 14 - 2) + 10y + 6 = 180
126 - 2 + 10y + 6 = 180
130 + 10y = 180
10y = 180 - 130
10y = 50
<u>y = 5</u>
Rhombus it is!!!!!!!
Don't forget to mark the Brainliest!!!
Gagan! Favourite Indian name! ;)
