Find the Z score for a) 80th percentile: b) 65th percentile c) 20th percentile
Solution:-
Given that,
A) 80% percentile
P(Z < z ) = 80% = 0.80
P(Z < 0.84 ) = 0.80
z = 0.84
z score is = 0.84
B)
65% percentile
P(Z < z ) = 65% = 0.65
P(Z < 0.385 ) = 0.65
z = 0.385
z score is = 0.385
C)
20% percentile
P(Z < z ) = 20% = 0.20
P(Z < -0.84) = 0.20
z = -0.84
z score is = -0.84
Find the Z score for a) 80th percentile: b) 65th percentile c) 20th percentile
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