Your scores on the first 4 ELA quizzes are:97, 79,91, and 79. If they would like to have an A (90) average after the next quiz, would score would you need to earn?

  104

Step-by-step explanation:

Relative to the average you want, your scores are +7, -11, +1, -11, for a total of -14. You need to earn 14 more than the average you want, so you would need to earn a score of 90+14 = 104.

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! )

46.2+112.3

step-by-step explanation: