Answer:
Step-by-step explanation:
From the question we are told that:
Mean
Standard Deviation
Percentile 81st
Generally Probability of 81st Percentile
Using Standard normal Table
Therefore the 81st percentile is given as
Answer: X= 57/2
Hope this helps!
<em>Answer: i=9</em>
<em />
<em>Step-by-step explanation:</em>
<em>-16=-4(-5+i)</em>
<em>-16=20-4i</em>
<em>-20 -20</em>
<em>-36=-4i</em>
<em>Divide by -4 </em>
<em>i=9</em>
-210
<em>good luck, i hope this helps :)</em>