Discrete uniform distribution

Question 1

when is a variable discrete

Answer 1

if it can only take certain numerical values

Question 2

when is a variable random

Answer 2

if the outcome is not known until the experiment is carried out

Question 3

what is probability distribution

Answer 3

fully describes the probability of any outcome in the range of a variables specific values

Question 4

what is a way a probability distribution can be described

Answer 4

when all the probabilities are the same as in this example the distribution is known as a discrete uniform distribution

Question 5

what is a discrete uniform distribution

Answer 5

when all the values in a probability distribution are all the same

Question 6

how to solve a probability distribution question

Answer 6

steps:
a) just listing all possibilities
bi) 1)make a table with number of heads on top and the probabilities on the bottom
2) as it is a fair test p = 1/2 so to get 0 heads p = 1/2 x 1/2 x 1/2
3)work out the probabilities for all of them
bii) ask hannah if needed

Question 7

the sum of all probabilities of all outcomes of an event add up to …

Answer 7

Question 8

how to solve this example of a probability distribution question

Answer 8

Question 9

how to solve this probability distribution question

Answer 9