An investigator conducting a statewide survey to determine the smoking behavior of high school students first divides the schools in the state into groups based on school district. Next, the investigator draws a random sample of schools from each area and then draws a random sample of students in each school. What type of sampling is the investigator using

after simplifying it i got: -36.25 as my answer. hope that !

answer is 144

step-by-step explanation:

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step-by-step explanation:

“ a line segment that has the endpoints on the circle and passes through the midpoint is called the diameter. the diameter is twice the size of the radius. a line segment that has its endpoints on the circular border but does not pass through the midpoint is called a chord. a circle is the same as 360 small circle up the number 0 . i hope this .