An ecologist wishes to mark off a circular sampling region having radius 10 m. However, the radius of the resulting region is actually a random variable R with the following pdf. f(r)={34(1−(14−r)2)13≤r≤150 otherwise
What is the expected area of the resulting circular region?

the expected area of the resulting circular region is 616.38 m²

Step-by-step explanation:

Given that:

otherwise

The expected area of the resulting circular region  is:

=

=

To calculate

Recall:

The expected area of the resulting circular region  is:

=

=

where;

Then

The expected area of the resulting circular region  is:

=

= 616.38 m²

step-by-step explanation:

. your answer will contain x - and y -terms. (1 point) x ( ¿¿ 2 − 7 ) 2 +( y 2 − 9 ) 2 √ ¿ 12. what is the distance from the directrix (the crocodile river) to the point ( x , y )? write this equation. your answer will contain a y -term.

she drove 134 miles

step-by-step explanation: