A battery manufacturer is interested in thelifetime of its products. Thirty batteries are tested until they fail. The times to failure (in hours) are given below.
41.3 21.1 35.6 13.5 4.2 15.8
5.5 5.8 33.6 18.6 24.3 18.1
3.5 8.4 4211 9.4 10.6 8.9 13.7 19.6 9.2 5.9 19.4 24.2 27.3 30.6 29.4 18.0 32.8 1.1.6
a) The manufacturer claims that 50% of its batteries last longer than 20 h. Describe how your graph shows
whether or not this is true.

i would you but i don't under stand the qustion

step-by-step explanation:

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

the correct answer would be d because the slope is -2/2=1 and the y intercept is at 2 so that is the correction equation