2025 IGCSE 0580 February/March P42 Q15

2025 IGCSE 0580 February/March P42 Q15

7 marks

Virat records the height of each of \(80\) sunflowers.

The results are shown in the table.

Height (\(h\text{ m}\))\(1.2<h\leq1.5\)\(1.5<h\leq1.6\)\(1.6<h\leq1.7\)\(1.7<h\leq1.9\)
Frequency\(12\)\(20\)\(34\)\(14\)
  1. Calculate an estimate of the mean height.[4]
  2. Draw a histogram to show the information in the table.[3]

Solution:

Solution locked

Sign in to view the step-by-step solution

Similar questions are unavailable for this question.
Answer:(a) \(1.60625\text{ m}\). (b) Frequency densities \(40,200,340,70\) on the four respective intervals.

Need help? Join our JC Math tuition classes.

Learn more