In a study of 250 adults, the average heart rate was 70 beats per minute. Assume the population of heart ra
standard deviation of 12 beats per minute. What does a margin of error of 2 for the 98% confidence interva
There is a 1% chance that the population mean is less than 70 beats per minute
There is a 1% chance that the population mean is more than 70 beats per minute
There is a 99% chance that the population mean is between 58 and 82 beats per minute.
There is a 99% chance that the population mean is between 68 and 72 beats per minute.

need points sry

center= (-2,0)

radius= sqrt2/2

step-by-step explanation:

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?