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Answer to Question #105967 in Statistics and Probability for Jay
Question #105967
After 5 matches the mean number of goals scored by a football team per match is 1.8. if they score 3 goals in their 6th match, what is the mean after the 6th Match
Expert's answer
After 5 games the team scored "1.8*5=9" goals.
After 6 games the team scored "9+3=12" goals.
The mean after 6 games is "\\frac{12}{6}=2" goals.
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Dear judith, please use the panel for submitting new questions.
A roulette wheel is divided into 4 sectors of equal area numbered 1, 0, 3 and 6. Suppose the wheel is spun twice and the random variable X is the sum from the two spins. (a) Find the probability mass function of X. (3) (b) Find the expected value of X, E.X/. (3) (c) Find variance of X, V.X)
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