Mathematics (AS & A Level) · Oct / Nov 2021 · Paper 51 · Question 7
9709
As printed in the paper
The question as text
The times, in minutes, that Karli spends each day on social media are normally distributed with mean 125 and standard deviation 24.
Read automatically from the paper; the printed page above is exact.
Show the answer and mark scheme
7(a)(i)[5]
7(a)(ii)[3]
7(b)[3]
Make a free account to save your answers and see your weak topics and ask the AI why a wrong answer is wrong.