# High school students are left stumped and 'very upset' over maths exam questions

Year 12 students are left stumped and 'very upset' over one question in their standard maths HSC exam - see if you can answer it The 2020 HSC maths exam questions baffled many students across NSW Syllabus change saw questions common to standard and advanced courses One question in particular about crickets chirping left many utterly confused

By Andrew Prentice For Daily Mail Australia

Published: 01:35 GMT, 27 October 2020 | Updated: 01:43 GMT, 27 October 2020

3

View

Year 12 students across NSW were left frustrated after struggling with a string of left-field questions in Monday's HSC standard mathematics exam.

A change to the syllabus resulted in many questions being common to both the standard and advanced mathematics courses.

One particular question in the standard maths paper about crickets chirping blindsided thousands of pupils.

Students were given a box-plot of temperature data and then asked to: 'calculate the number of chirps expected in a 15-second interval when the temperature is 19° Celsius. Give your answer correct to the nearest whole number'.

Oak Ukritnukun, Matrix Education's head of mathematics, admitted the question was 'really challenging.' The question about cricket chirping (pictured above) which baffled many HSC students sitting their 2020 maths exam Some students sitting the 2020 maths exam were confused by a few questions on Monday (stock image)

CRICKET CHIRP QUESTION EXPLAINED

1) Identify the median (22 degrees Celsius)

2) Identify the mean temperature (21.475 degrees Celsius)

3) Find the mean number of chirps over 15 seconds (34.2)

4) Find the value of b, by substituting x and y into the equation given:

y = -10.6063 + bx

34.2 = 