Aperson gets on and off a bathroom scale four times. the four readings (in pounds) are 148, 151, 150, and 152. each time after the person gets off the scale, the reading is 2 lb. is it possible to estimate the uncertainty in these measurements? if so, estimate it. if not, explain why not. is it possible to estimate the bias in these measurements? if so, estimate it. if not, explain why not.

See explanation below

Step-by-step explanation:

Since each time after the person gets off the scale, the reading is 2 lb the person's weight must be near the mean of

148-2, 151-2, 150-2, 152-2; that is to say, near the mean of 146, 149, 148, 150 = (146+149+148+150)/4 = 148.25

We could estimate the uncertainty as the standard error SE

where  

s = standard deviation of the sample

n = 4 sample size.

Computing s:

So, the uncertainty is 1.479/2 = 0.736

It is not possible to estimate the bias, since it is the difference between the true weight and the mean, but we do not know the true weight.

check above link.

graphically?   well, you graph them both, the solutions is where they both intersect each other, since there are two solutions, meaning they will meet twice, or namely the linear will run into the quadratic curve twice, and where they meet, those x,y coordinates are the solutions to the system.

answer:

it is 28 degrees colder in detroit than philadelphia.

step-by-step explanation:

what number adds to 21  

-7 + ? = 21

-7 + 28 = 21

hope it