I'm in desperate need of help, these are 5 out of the 12 questions I need to be answered. This is something that wasn't covered in my class but I fail if I don't do it.

1 is c

2 is a

3 is a

step-by-step explanation:

answer: .64

step-by-step explanation

set up the formula for standard deviation for this set of numbers, then simplify

we know that

major arc is defined as the bigger arc connecting two points on the edge of a circle. measure of major arc is always more than ° or π radian

in this problem

the mayor arc is bac

find the ratio of the measure of the major arc to the measure of the minor arc

therefore

the answer is the option