a map of a rectangular park has a length of 4 inches and a width of 6 inches. It uses a scale of 1 inch for every mile. What is the actual area of the park?

The actual area of the park = 24 square miles.

Step-by-step explanation:

Given : A map of a rectangular park has a length of 4 inches and a width of 6 inches.

It uses a scale of 1 inch for every mile.

i.e. i inch on map = 1 actual mile

so, 4 inches   on map = 4 actual miles

6 inches on map =  6 actual miles

Area of rectangle = length x breadth

⇒ Area of rectangle = 6 x 4 square miles

= 24 square miles.

Hence, the actual area of the park = 24 square miles.

the answer   is 200

step-by-step explanation:

this is a problem about poisson probabilities.   i don't know if you've

already studied poisson distributions, or if you have a place to look

to read more about the subject.  

here's how you can see a poisson distribution coming.   when there are

a lot of events that may happen at any time (or any place), and when

you're counting how many of them happen at a particular time (or a

particular place), and each event is independent of the others, then

the result is a poisson distribution.   this is roughly true for the

chocolate chips; one chip being in a cookie has only a small effect on

the probability that another chip will be in the cookie.

once you know you have a poisson distribution, you know a lot.   there

is only one parameter to a poisson distribution, so if you know the

mean, you know everything.   the form of the distribution is

  probability of n chips = {[e^(-x)]*(x^n)} / (n! )