Question
(4 points) Suppose you choose at random a number x from the interval 5,50 . If 5 , the uniform density function f(x) is f(x)=
(4 points)\ Suppose you choose at random a number
x
from the interval
5,50
. If
5, the uniform density function
f(x)
is
f(x)=
,
5, and
f(x)=0
otherwise.\ Let
E
be the event
6. In interval notation,\
E=[6,35]
\ What is
P(E)
(write a fraction or use at least four decimal places)?\ Let
F
be the event
22. In interval notation,\
F=[22,46]
\ What is
P(F)
(write a fraction or use at least four decimal places)?\ What is
P(E\\\\cap F)
(write a fraction or use at least four decimal places)?\ Hint: where do the intervals
E
and
F
overlap?\ What is
P(E\\\\cup uF)
(write a fraction or use at least four decimal places)?\ Hint: Draw the intervals
E
and
F
on a single number line.\ What numbers are covered by at least one of them, and from where to where?\ Note: You can earn partial credit on this problem.
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