So ! what is the sign of the product (−2)(4)(−6)(−3)? (20 points) select one: a. positive, because the products (−2)(4) and (−6)(−3) are negative, and the product of two negative numbers is positive b. positive, because the products (−2)(4) and (−6)(−3) are positive, and the product of two positive numbers is positive c. negative, because the product (−2)(4) is positive and the product (−6)(−3) is negative, and the product of a positive number and a negative number is negative d. negative, because the product (−2)(4) is negative and the product (−6)(−3) is positive, and the product of a negative number and a positive number is a negative number

the answer will be d because the numbers are negative but the product will always be positive. :-)

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! )

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