1. Jane went shopping and bought a shirt for $27, a skirt for $32, and a pair of shorts for $14. Choose the answer that is the best estimate for the total of these items. $70
$100
$60
O O
$80
HELP PLEASE

70

Step-by-step explanation:

First add the tens: 20 + 30 + 10= 60

Now add the Ones: 7 + 2 + 4= 13

now add them all together: 60+13=73

so the best estimate is 70

                                         Your Welcome

Step-by-step explanation:

to estimate you should round all the individual numbers to numbers that are easy to work with:

$27 → $30

$32 → $30

$14 → $10

then add the rounded numbers together to find the total

so $30 + $30 + $10 = $70

This means the best estimate is $70

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! )

b

step-by-step explanation:

a difference is the result of subtraction. while each of these expressions has subtraction in it, a difference will be the result when subtraction is the last operation applied in the order of operations for the expression. this means subtraction must be outside of the parenthesis. only b has this.