Quantitative survey of a named plant using percentage frequency method (LC 2026) (Leaving Cert Biology): Quizzes

Throw pencil over shoulder, place where it lands

To prevent bias

Mark presence or absence only

10 times

To get repeatable data and obtain average

$\frac{\text{throws with plant}}{\text{total throws}} \times 100$

In table and graph format

80%

60%