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The probability density of a random variable X is given in the figure below. From this density, the probability that X > 1.88 or X < 0.2 is:

1 Answer

3 votes

Explanation:

Using the uniform distribution, it is found that there is a 0.38 = 38% probability that X is between 0.68 and 1.44.

-----------------------

Uniform probability distribution:

Has two bounds, a and b.

The probability of finding a value between c and d is:

(

)

=

P(c≤X≤d)=

b−a

d−c

In this problem:

The bounds are 0 and 2, thus

=

0

,

=

2

a=0,b=2 .

The probability that X is between 0.68 and 1.44 is:

(

0.68

1.44

)

=

1.44

0.68

2

0

=

0.38

P(0.68≤X≤1.44)=

2−0

1.44−0.68

=0.38

0.38 = 38% probability that X is between 0.68 and 1.44.

User Sahibjot Singh
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