A random sample of receipts for individuals eating at the terrace restaurant showed the sample mean to be x=$10.39 with a sample standard deviation s=$2.15. (a) use Chebyshev, s theorem to find the smallest interval centered on the mean in which we can expect at least 88.9% of the data to fall.
(b) if our sample is normally distributed, what interval will contain exactly 95% of our data?

answer

explanation

the area of a circle is calculated using the formula

or

we can use any of the above formulae to calculate the required. preferably, let us use the latter since the diameter is

we substitute the diameter into the formula to get:

this is the exact value for the area of the circle.

the correct answer is a

step-by-step explanation:

the answer is b. 60. each interior angle in 120, so the exterior angle must be 60 in order to add up to 180

step-by-step explanation:

i’m here for points.