To find the probability of Joseph picking a key lime piece of taffy you will create a fraction with the number of possible outcomes over the total possible outcomes.
<u># of key lime taffies</u> <u>12</u>
total # of taffies = 60
12/60 = 1/5
1/5 = 0.2
Joseph has a 0.2 probability of picking a key lime taffy.
Hello,
Part A:

Part B:
x² coefficient is 4 >0 thus a minimun
as y=4(x+1)²-9 : vertex is (-1,-9)
Proof: see picture
Sorry for Part c: I don't know
In France, we make an array of (x,f(x)) and then plot the severals points.
This should be self-explanatory, but just in case it's not: your chi-square score goes in the chi-square score box, you stick your degrees of freedom in the DF box (df = (<span>NColumns-1</span>)*(<span>NRows-1</span>) for chi-square test for independence).
A unit rate is a ratio between two different units with a denominator of 1. To calculate the unit rate, divide the numerator by the denominator. The resulting decimal number is the unit rate.