Answer:
Yes, the probability distribution is valid.
Step-by-step explanation:
Given :
Income range ___ midpoint(x) ___ %
5 - 15 __________ 10 _____20%
15 - 25 _________ 20 _____13%
25- 35 _________ 30 _____ 21%
35 - 45 _________40 _____ 17%
45 - 55_________ 40 ____ 20%
55 or more _______ 50 _____9%
Yes, we do have a valid probability distributuon ; as the summation of the percentage values is equal to 100%
1/3x let’s us the slope of the line is going up one and over three between each point. The +3 lets us know that the line will be located three points above the origin aka the middle/0,0 of the graph. Continuing this pattern will give you a positive linear line. The equation doesn’t make it so the line curves
Answer:
car b has a steeper slope tho... so it's car b
150 books-86 books= 64 books.
We originally have 86 books, so the percent of increase is:
64 books/ 86 books* 100%= 74.42%
The percent of increase is 74.42%~
Y=((x-5)(x-4))/(x-4)
y=x-5
