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soccergal12
The following table shows the density for the random variable X, the number of patients seeking emergency room treatment unnecessarily per day in a very small hospital. X 0 1 2 3 f(x) 0.4 0.3 0.2 0.1 Consider a random sample of two days. What is the probability that mean number of patients seeking emergency room treatment unnecessarily for this sample is at most 1.5?