For the given data value, find the standard score and the percentile.
-A data value 0.9 standard deviations below the mean.
A) $z = - 0.9 ;$ percentile $= 81.59$
B) $z = - 0.9$; percentile $= 18.41$
C) $\mathrm { z } = - 0.09$; percentile $= 46.02$
D) $\mathrm { z } = 0.9$; percentile $= 81.59$

Question

For the given data value, find the standard score and the percentile.
-A data value 0.9 standard deviations below the mean. 
A) $z = - 0.9 ;$ percentile $= 81.59$
B) $z = - 0.9$; percentile $= 18.41$
C) $\mathrm { z } = - 0.09$; percentile $= 46.02$
D) $\mathrm { z } = 0.9$; percentile $= 81.59$

Quizplus · Accepted Answer

The standard score (z-score) is given as $z = -0.9$, indicating the data value is 0.9 standard deviations below the mean. The corresponding percentile for a z-score of -0.9 is approximately 18.41%, indicating that about 18.41% of the data falls below this value.

For the Given Data Value, Find the Standard Score and the Percentile