Mathematics, 03.07.2020 20:01, coollid876
The continuous random variable X represents the percentage of iron contained in an ore sample taken from a particular region. The probability density function for X is given by f(x) = kx^3 (1 – x) where k is a positive constant.
Required:
a. On what interval does X take values?
b. Find k.
c. What is the probability that an ore sample contains at least 70% iron?
Answers: 3
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