Easy -1.8 This tests only basic recall that the product moment correlation coefficient must lie between -1 and 1. Since 1.05 exceeds this range, it is definitely incorrect. This requires no calculation or problem-solving—just knowledge of a fundamental property, making it significantly easier than average.
12 Manny is studying the price and number of pages of a random sample of books.
He calculates the value of the product moment correlation coefficient between the price and number of pages in each book as 1.05
Which of the following best describes the value 1.05 ?
Tick ( \(\checkmark\) ) one box.
definitely correct □
probably correct □
probably incorrect □
definitely incorrect □
\includegraphics[max width=\textwidth, alt={}, center]{b45dc98e-1699-47c9-9228-5abe0e5c9195-15_2488_1716_219_153}
12 Manny is studying the price and number of pages of a random sample of books.\\
He calculates the value of the product moment correlation coefficient between the price and number of pages in each book as 1.05
Which of the following best describes the value 1.05 ?\\
Tick ( $\checkmark$ ) one box.\\
definitely correct □\\
probably correct □\\
probably incorrect □\\
definitely incorrect □\\
\includegraphics[max width=\textwidth, alt={}, center]{b45dc98e-1699-47c9-9228-5abe0e5c9195-15_2488_1716_219_153}
\hfill \mbox{\textit{AQA AS Paper 2 2019 Q12 [1]}}