9709/52 · Oct/Nov 2022
Probability & Statistics 1 · 50 marks · 7 questions
- Question 15 marks
Probabilities by type of journey, and a conditional probability.
- Question 27 marks
Normal distribution: expected count and probability within half a standard deviation.
- Question 35 marks
Geometric probabilities for repeated throws.
- Question 47 marks
Draw a histogram and estimate a standard deviation from grouped data.
- Question 57 marks
Fair and biased coins: a conditional probability and a probability distribution.
- Question 69 marks
Binomial and normal approximation, with a justification.
- Question 710 marks
Arrangements of letters with grouping and spacing, a probability, and selections.