A population has a mean of 300 and a standard deviation of 80. Suppose a simple random sample of size 100 is selected and is used to estimate 44. Use z-table.
a. What is the probability that the sample mean will be within +3 of the population mean (to 4 decimals)?
b. What is the probability that the sample mean will be within +14 of the population mean (to 4 decimals)?

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80° is the measure of gh

step-by-step explanation:

circle f is congruent to circle j

we have two circle with center f and j.

both circles are congruent. the radius of the circle would be equal.

see the attachment for the circle.

we are given ∠efd ≅ ∠gjh

therefore, arc (ed) = arc (gh)     (∴ circle f is congruent to circle j)

but ∠dfe=80°=arc (ed)

therefore, arc (gh) = 80°

thus, 80° is the measure of gh