AQA
A Level
A Level Mathematics
Appropriate Probability Distributions
(Answers)
2022
Total Marks:
, N3- Appropriate Probability Distributions- Answers
AQA
1) For the following state whether it could be modelled with a binomial or normal
distribution. [1 mark for each correct answer- 5 max]
i) The number of heads from 10 flips a fair two-sided
coin Binomial. Sample size fixed. Either a head or not a head.
ii) The number of sisters you have
Binomial. Sample size fixed. Either a sister or not a sister.
iii) The time a processor lasts
Normal. Continuous random
variable.
iv) The concentration of chemical x in blood
(mg/ml) Normal. Continuous random variable.
v) The probability of getting a six on a die from 100
rolls. Binomial. Sample size fixed. Either a six or not a six.
A Level
A Level Mathematics
Appropriate Probability Distributions
(Answers)
2022
Total Marks:
, N3- Appropriate Probability Distributions- Answers
AQA
1) For the following state whether it could be modelled with a binomial or normal
distribution. [1 mark for each correct answer- 5 max]
i) The number of heads from 10 flips a fair two-sided
coin Binomial. Sample size fixed. Either a head or not a head.
ii) The number of sisters you have
Binomial. Sample size fixed. Either a sister or not a sister.
iii) The time a processor lasts
Normal. Continuous random
variable.
iv) The concentration of chemical x in blood
(mg/ml) Normal. Continuous random variable.
v) The probability of getting a six on a die from 100
rolls. Binomial. Sample size fixed. Either a six or not a six.
