VCE General Maths Data Analysis 2022 Mini Test 1

VCAA General Maths Exam 2

This is the full VCE General Maths Exam with worked solutions. You can also try Mini-Tests, which are official VCAA exams split into short tests you can do anytime.

Number of marks: 9

Reading time: 2 minutes

Writing time: 13 minutes

Instructions
β€’ Answer all questions in the spaces provided.
β€’ Write your responses in English.
β€’ In all questions where a numerical answer is required, you should only round your answer when instructed to do so.
β€’ Unless otherwise indicated, the diagrams in this book are not drawn to scale.


Data analysis - 2022 & 2024 - Exam 2 (Part 1)

Question 1 (4 marks) [2024 Exam 2 Q2]

The boxplot below displays the distribution of all gold medal-winning heights for the women’s high jump, \(Wgold\), in metres, for the 19 Olympic Games held from 1948 to 2020.

A boxplot for Wgold (m) with a scale from 1.64 to 2.08. The boxplot shows the minimum at 1.68, Q1 at 1.85, median at 1.97, Q3 at 2.05, and maximum at 2.06.

a. Describe the shape of this data distribution. 1 mark

b. For this boxplot, what is the smallest possible number of \(Wgold\) heights lower than 1.85 m? 1 mark

c.

i. Using the boxplot, show that the lower fence is 1.565 m and the upper fence is 2.325 m. 1 mark

ii. Referring to the boxplot, the lower fence and the upper fence, explain why no outliers exist. 1 mark

Question 2 (6 marks) [2022 VCE Further Maths Exam 2 Q1]

The back-to-back stem plot below displays the distribution of daily maximum wind speed, in kilometres per hour, recorded at a weather station in April and November 2021.

Back-to-back stem plot of wind speed for April and November 2021.

a. For April 2021, determine

i. the median wind speed, in kilometres per hour 1 mark

ii. the percentage of days for which the wind speed was less than 25 km/h. 1 mark

b. The five-number summary for wind speed in November 2021 is given below.

Minimum First quartile
(\(Q_1\))
Median Third quartile
(\(Q_3\))
Maximum
15 22 28 35 70

The wind speeds for November are to be used to construct a boxplot.

Show that the wind speeds of 59 km/h and 70 km/h would appear as outliers in this boxplot. 2 marks

c. On the grid below, use the data from the stem plot on page 2 to construct a histogram that displays the distribution of wind speed for November 2021. Use class intervals of widths of five, starting at 15 km/h. 2 marks

Grid for histogram of wind speed.

End of Multiple-Choice Question Book

VCE is a registered trademark of the VCAA. The VCAA does not endorse or make any warranties regarding this study resource. Past VCE exams and related content can be accessed directly at www.vcaa.vic.edu.au

>