Provide an appropriate response.
-The cholesterol levels (in milligrams per deciliter)of 30 adults are listed below. Find the percentile that corresponds to a cholesterol level of 238 milligrams per deciliter. $$\begin{array} { l l l l l l l l l l }
154 & 156 & 165 & 165 & 170 & 171 & 172 & 180 & 184 & 185 \
189 & 189 & 190 & 192 & 195 & 198 & 198 & 200 & 200 & 200 \
205 & 205 & 211 & 215 & 220 & 220 & 225 & 238 & 255 & 265
\end{array}$$
A)90th percentile
B)30th percentile
C)40th percentile
D)50th percentile

Question

Provide an appropriate response.
-The cholesterol levels (in milligrams per deciliter)of 30 adults are listed below. Find the percentile that corresponds to a cholesterol level of 238 milligrams per deciliter. $$\begin{array} { l l l l l l l l l l } 
154 & 156 & 165 & 165 & 170 & 171 & 172 & 180 & 184 & 185 \
189 & 189 & 190 & 192 & 195 & 198 & 198 & 200 & 200 & 200 \
205 & 205 & 211 & 215 & 220 & 220 & 225 & 238 & 255 & 265
\end{array}$$
A)90th percentile
B)30th percentile
C)40th percentile
D)50th percentile

Quizplus · Accepted Answer

To find the percentile of a score, the formula is $\frac{Number\ of\ scores\ below\ the\ score\ +\ 0.5}{Total\ number\ of\ scores} \times 100$. For a cholesterol level of 238, there are 27 scores below it (since the scores are listed in ascending order and 238 is the 28th score). Using the formula: $\frac{27 + 0.5}{30} \times 100 = 91.67$, which rounds to the 90th percentile.

Provide an Appropriate Response A)90th Percentile B)30th Percentile C)40th Percentile D)50th Percentile

Provide an Appropriate Response A)90th Percentile
B)30th Percentile
C)40th Percentile
D)50th Percentile