Probability density function
Let X Have the probability density function
f(x)=2x, 0 < x < 1, and 0 otherwise
Compute the probability that X is at least 3/4 given that X is at least 1/2
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At the 0.05 significance level, can he conclude that the number of absences has declined? Hint: For the calculations, assume the "Before" data as the first sample.
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