The lengths of a professor's classes has a continuous uniform distribution between 50.0 min and 52.0 min. If one such class is randomly selected, find the probability that the class length is less than 50.4 min. P(X < 50.4) =

Respuesta :

Answer:

[tex] P(X<50.4)[/tex]

And for this case we can use the cumulative distribution given by this formula:

[tex] F(x) = \frac{x-a}{b-a}[/tex]

And if we use this formula we got:

[tex] P(X<50.4)= F(50.4) = \frac{50.4- 50}{52-50}= 0.2[/tex]

And then the probability that  the class length is less than 50.4 min is 0.2

Step-by-step explanation:

Let X the random variable who represent the lengths of a professor's classes, and the distribution for X is given by:

[tex] X \sim Unif (a= 50, b=52)[/tex]

And we want to find the following probability:

[tex] P(X<50.4)[/tex]

And for this case we can use the cumulative distribution given by this formula:

[tex] F(x) = \frac{x-a}{b-a}[/tex]

And if we use this formula we got:

[tex] P(X<50.4)= F(50.4) = \frac{50.4- 50}{52-50}= 0.2[/tex]

And then the probability that  the class length is less than 50.4 min is 0.2