5. the track team groups students based on times for a 100-meter dash, rounded to the nearest tenth of a second. The groups are as follows:
Team A: 0-4.9 seconds
Team B: 5-9.9 seconds
Team C: 10-14.9 seconds
Team D: 15-19.9 seconds
Each track member's time has been recorded below.
16.0, 14.9, 13.2, 12.5, 9.1, 8.1, 10.4, 10.8,
8.4,9.5, 9.5, 11.5, 15, 8.0,9.7.13.2, 12.1, 11.2
Part A: Explain why a histogram would be a better representation model
of the data.

step-by-step explanation:

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! )

17   x 256=4352

sorry if this is wrong, i'm new.

step-by-step explanation: