Question: probability questions The following probability distribution function gives the number of lab coats sold per day by Karisma FTKMP. Number of lab coats (x) 0

probability questions

The following probability distribution function gives the number of lab coats sold per day by Karisma FTKMP. Number of lab coats (x) 0 2 3 4 P( X =x) 0.2 0.2 a a b If the mean of sales per day is 2.0, find (a) The values of a and b. (6 marks) (b) The probability that a randomly selected number of lab coats sold at least three. (2 marks)

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