Dr. Jon planned to reward his class with candy. He surveyed every 4th student that entered the class to find out which candy he should buy. Was this random or biased sampling?

It was random sampling as he wasn’t favouring anybody. All students had an equal chance of being selected.

Biased sampling would be him for example interviewing every student with blonde hair and glasses. He randomly selected students without bias.

step-by-step explanation:

i think something is missing in your question because y-1=(x-12) would not pass through the point (-4,-3). because if you replace x by -4 your are supposed to find y=-3 which is not the case her. if you replace x by -4 you find =-15.

i assume the right equation is y-1=1/4*(x-12) because this one is passing through both your points (if you are interested to know how i found that out i can tell you).

in this equation if i replace x by -4 i find y=-3 and if i replace x by 12, i find y=1 so the line representing this equation is passing through those 2 points.

then the standard form of the equation is finding an expression of y in function of x

y-1=1/4*(x-12)

y=x/4-3+1

y=x/4-2

hope that .

do you confirm there was a mistake in the question?

sorry i just need to anwers this to get points

step-by-step explanation: