Mathematics, 28.02.2020 04:00 taygotclout4786
A statewide sample survey is to be made. First, the stateis subdivided into counties. Seven counties are selected atrandom and further sampling is concentrated on these sevencounties. What type of sampling is this?
A. Simple Random
B. Non-Proportional
C. Cluster
D. Stratified
Answers: 2
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Abcd is reflected across the x- axis, then rotated 90 clockwise about the orgin, and finally reflected across the line y= x to form a’ b’ c’ .
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