The data below shows the number of study hours and the quiz scores of $10$ students.

Hours of study: $1$, $2$, $1.5$, $3$, $2.5$, $4$, $3.5$, $5$, $4.5$, $6$

Quiz score: $50$, $58$, $54$, $66$, $63$, $72$, $69$, $78$, $75$, $82$

Based on the data, which of the following best describes the relationship between hours of study and quiz score?