Trent wanted to know if there was a connection between his coffee consumption and how well he slept that night.

for weeks, trent recorded how many cups of coffee he drank in the morning and how many hours he slept that night. the probability that a day is one when he drank exactly 1 cup of coffee is 0.71, the probability that it is one when he slept exactly 8 hours is 0.61, and the probability that it is one when he drank exactly 1 cup of coffee or is one when he slept exactly 8 hours is 0.89.

what is the probability that a randomly chosen day is one when he drank exactly 1 cup of coffee and is one when he slept exactly 8 hours?

25.3

step-by-step explanation:

1st step

add 3+6

=9

multipy 9*3

=37

answer: i think it is c

one way is to plot 2 points and connect them which is what the answer choices seem to be doing

it seems to be using the y intercept and the slope

y=mx+b, m=slope, b=y-intercept (where the line hits the y axis)

slope=rise/run

y-intercept is where the line croses the y axis which is the y value where x=0

you seem to have given the wrong slope (you didn't put a number in front of te x, it should be 2/3 or 3/2 looking at the answer options)

y=? x-1

m=? because of your fault

b=-1

so it has a slope of ? and y intercept of -1, meaning it pases through (0,-1)

so draw point (0,-1) (so answer is one of the first 2 option)

if slope is 2/3, then go up 2 and right 3 then draw line through those 2 points

if slope is 3/2, then go up 3 and right 2 then draw line through those 2 points