jasminebailey159 jasminebailey159

06-03-2024
Mathematics

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Consider a random variable X whose probability mass function is given by

{0.1 if x = -2
{0.1 if x = 0
p(x) = {0.3 if x = 2.2
{a² if x = 3
{4a if x = 4
{0 otherwise

What is a?

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