pls help to solve this

Answer:
[tex]\underline{ \underline{ \pink{\large{ \tt{ \: S \:T \: E \: P \: - \: BY \: - \: S \: T \: E \: P \: \: E\: X\: P \: L \: A \:N\: A \: T \: I \: O \: N}}}}}: [/tex]
Q. Find the range and coefficient of range of the data :
⇾ Solution :
We know , Range is the difference between the largest and smallest value. By definition ,
1. Range = Largest value - Lowest value = 900 - 100 = [tex] \boxed{ \sf{800}}[/tex]
2. Coefficient of range =[tex] \large{ \tt{ \frac{L - S}{L + S} = \frac{900 - 100}{900 + 100 } = \boxed{ \tt{0.8}} }}[/tex]
Q. If f ( x ) = 9x - 8x and x belong to { 0 , 4 , 3 ,5 }. Find the range.
⇾ Solution:
When x = 0 , f ( 0 ) = 9 × 0 - 8 × 0 = 0
When x = 4 , f ( 4 ) = 9 × 4 - 8× 4 = 4
When x = 3 , f ( 3 ) = 9 × 3 - 8 × 3 = 3
When x = 5 , f ( 5 ) = 9 × 5 - 8 × 5 = 5
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