AQA Paper 3 2022 June — Question 11 1 marks

Exam BoardAQA
ModulePaper 3 (Paper 3)
Year2022
SessionJune
Marks1
PaperDownload PDF ↗
Mark schemeDownload PDF ↗
TopicNormal Distribution
TypeLinear transformation of normal
DifficultyEasy -1.8 This is a trivial recall question worth only 1 mark that tests whether students know the notation N(μ, σ²) means the second parameter is variance, not standard deviation. It requires only taking a square root of 0.35 and circling the correct answer from four options, with no problem-solving or application needed.
Spec2.04e Normal distribution: as model N(mu, sigma^2)

\(X \sim \text{N}(14, 0.35)\) Find the standard deviation of \(X\), correct to two decimal places. Circle your answer. [1 mark] 0.12 \quad\quad 0.35 \quad\quad 0.59 \quad\quad 1.78

Question 11:
AnswerMarks Guidance
11Circles correct answer 1.1b
Question 11 Total1
QMarking instructions AO
Question 11:
11 | Circles correct answer | 1.1b | B1 | 0.59
Question 11 Total | 1
Q | Marking instructions | AO | Marks | Typical solution
$X \sim \text{N}(14, 0.35)$

Find the standard deviation of $X$, correct to two decimal places.

Circle your answer.
[1 mark]

0.12 \quad\quad 0.35 \quad\quad 0.59 \quad\quad 1.78

\hfill \mbox{\textit{AQA Paper 3 2022 Q11 [1]}}