AS maths helpWatch
In a game, a player can score 0, 1, 2, 3 or 4 points each time the game is played.
The random variable S, representing the player's score, has the following probability distribution where a, b and c are constants.
S 0 1 2 3 4
P(S=s) a b с 0.1 0.15
(This is a probability table)
The probability of scoring less than 2 points is twice the probability of scoring at least 2 points.
Each game played is independent of previous games played.
John plays the game twice and adds the two scores together to get a total.
Calculate the probability that the total is 6 points.
If I got a clue, I will give you an answer.