Homepage

Course Index

Build a Quiz

Subscriptions

Courses

NSW HSC Maths - Standard 1

Topics

Past HSC Paper Past HSC Questions- By Topic Practice Papers HSC Diagnostics Quizzes

Pearson's Correlation Coefficient

Quiz Details

Topics covered

  • Q 1 Past HSC Questions- By Topic - Pearson's Correlation Coefficient

  • Q 2 Past HSC Questions- By Topic - Pearson's Correlation Coefficient

  • Q 3 Past HSC Questions- By Topic - Pearson's Correlation Coefficient

  • Q 4 Past HSC Questions- By Topic - Pearson's Correlation Coefficient

Question 1
HSC 2015 - Question 28e (External Link) Show Question
Answer

(i) Refer to graph

(ii) 14cm

(iii) A correlation coefficient of 1 is not possible

Worked Solution

\(\textbf{i)}\)

\(\textbf{ii)}\)

\begin{aligned}\text{From the graph }& 7.5 \rightarrow 160 \text{ cm and } 9 \rightarrow 174 \text{ cm} \\\therefore \text { Difference }&=174-160 \\&=14 \text{ cm}\end{aligned}

\(\textbf{iii)}\)

A correlation coefficient of 1 indicates that a straight line including all the points.
\(\therefore\) the correlation coefficient of 1 is not possible.

Question 2
HSC 2019 - Question 23 (External Link) Show Question
Answer
You must be logged in to see the answer. or
Worked Solution
You must have an active subscription to access course content
Question 3
HSC 2016 - Question 29d (External Link) Show Question
Answer
You must be logged in to see the answer. or
Worked Solution
You must have an active subscription to access course content
Question 4
HSC 2017 - Question 30d (External Link) Show Question
Answer
You must be logged in to see the answer. or
Worked Solution
You must have an active subscription to access course content

Create account

I am..

Please enter your details

I agree with your terms of service