Answer
Deciles and percentiles both are relative measures of data.
Work Step by Step
$D_{1}$ corresponds to $P_{10}$.
$D_{2}$ corresponds to $P_{20}$.
$D_{3}$ corresponds to $P_{30}$.
$D_{4}$ corresponds to $P_{40}$.
$D_{5}$ corresponds to $P_{50}$.
$D_{6}$ corresponds to $P_{60}$.
$D_{7}$ corresponds to $P_{70}$.
$D_{8}$ corresponds to $P_{80}$.
$D_{9}$ corresponds to $P_{90}$.