Exponential distribution -- Example 1

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Exponential distribution -- Example 1
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while solving a bit why we are equating with 1/2?

venuvaka
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No. The population median *can* be equal to the population
mean for some distributions (for example, a symmetric
distribution), but they are not necessarily equal. For an
exponential random variable, for example, the population median
is always different from the population mean. LL

lawrenceleemis