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kealalac1
26.12.2019 •
Mathematics
If a random variable x is exponentially distributed with parameter λ=2, then p(x≥1) is equal to
a. 0.3935
b. 0.8647
c. 0.6065
d. 0.1353
if a random variable x is exponentially distributed with parameter λ=1.5, then p(2≤x≤4) is equal to
a. 0.9527
b. 0.0473
c. 0.6617
d. 0.3383
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Ответ:
D. 0.1353
B. 0.0473
Step-by-step explanation:
For an exponentially distributed random variable, the cumulative distribution function is:
with parameter λ=2, then P(X≥1) is equal to:
D. 0.1353
with parameter λ=1.5, then P(2≤X≤4) is equal to
B. 0.0473
Ответ:
B
Step-by-step explanation: