91影视

A sample of 50 data speeds is listed.

A percentileof a data point is the proportion of values in the dataset lower than the specific data point.

The formula for the percentile of value x:

$P_x=\frac{Numberofvaluesbelowx}{Totalnumberofvalues}脳100$

For example,if a value is in the 26^th percentile, it shows that 26% of observations lie below that value.

Steps to be followed to find the percentile measure:

• Sort the data speeds in ascending order.
• Calculate the total number of observations.
• Calculate the number of observations below 13.0.
• Calculate the percentile as shown below:

The percentile corresponding to 13 Mbps data speed is as follows:

$$\begin{gathered} P_{13.0}=\frac{Numberofvaluesbelow13.0}{Totalnumberofvalues}脳100 \\ =\frac{45}{50}脳100 \\ =90 \end{gathered}$$

Therefore, 13.0 Mbps corresponds to the 90^th percentile.