Which of the following is a correct interpretation of standard deviation?
a. All the infants born in April weighed between 117.8 oz. and 138.2 oz.
b. About half the infants born in April weighed between 117.8 oz. and 138.2 oz.
c. The difference between the mean weight and the median weight of infants born in April
was 10.2 oz.
d. The distance between the weight of each infant born in April and the mean weight was,
on average, about 10.2 oz.
e. The mean weight of infants born in subsequent months is likely to be within 10.2 oz. of
the mean weight in April.

isocolese triangle

we know that the line connect a and b is the hyptonuse

so first find the hypotonuse length using the distance formula, call the length c

since it is an isocolese triangle, the lengths of the legs are the same

using pythagorean theorem,

in this case, a=b since isocolese triangle so we get

or

we can find c so we can find the distances

we know that if we draw 2 circles, each has center at a and b, and find where they intersect, we can the 2 possible locations for c

if a has center at (xa,ya) and b has center at (xb,yb), then we can solve where

and

intersect to find where they intersect

i'm not going to put an example because i have to go to class. i hope this explanation is enough