Your progress
Ticks are kept only in this browser: clearing your browsing data or changing device loses them. · ·

Numeracy Foundation June 2025 Unit 2 Q11

WJECFoundationCurrent spec8 marksAverages (including IQR)Scatter Diagrams & Correlation

11. In a PE lesson, 12 students each measured their height and arm span.
The results are shown on the scatter diagram below.

Scatter diagram: Height (cm) from 150 to 180 on the horizontal axis, Arm span (cm) from 150 to 175 on the vertical axis, with 12 plotted points
(a)

Anwen is the only student who made an error in her measurements.
She is one of the shortest students.

What did Anwen record as the measurement for her arm span?
Circle your answer. [1]

155 cm    168 cm    173 cm    172.5 cm    178 cm

(b) If you ignore Anwen’s height, what is the median height of the other 11 students? [1]

Median height is …………… cm

(c) What term best describes the correlation between a student’s height and their arm span? [1]
(d) Megan has the same arm span as Elwyn.
Elwyn is taller than Megan.
How tall is Megan? [2]

Megan is …………… cm tall

(e) Roland is 160 cm tall.
Elsa is 10% taller than Roland.
Find Elsa’s height and arm span. [3]

Elsa’s height is …………… cm
Elsa’s arm span is …………… cm

‹ Previous171 of 367 in Averages (including IQR)Next ›