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Vika [28.1K]
3 years ago
14

Suppose that, after measuring the duration of many telephone calls, a telephone company found their data was well-approximated b

y the density function p(x)=0.8????−0.8x, where x is the duration of a call, in minutes. (a) What percentage of calls last between 1 and 2 minutes? Percent = 100(-e^(-1.6) + e^(-0.8)) percent (b) What percentage of calls last 1 minutes or less? Percent = 100(1-e^(-0.8)) percent (c) What percentage of calls last 4 minutes or more? Percent = 100(e^(-3.2)) percent (d) What is the cumulative distribution function, P(????)?
Mathematics
1 answer:
Temka [501]3 years ago
5 0
856755556666667811111118999.56
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