Answer:
Number of students ; 60
Explanation:
Using the formula for p +- z * Sqrt ( pq/n )
Let us first calculate the Margin of Error
= 0.816 –0.7 = 0.116
•z* = 1.96
P = (0.584 + 0.116 ) = 0.7
Q = 1- p = 1 – 0.7 = 0.3
Now inserting the values in the formula; we get
0.116 = 1.96 x sqrt { ( 0.7 x 0.3) / n }
Solving the above equation
N = 60 (rounded off to nearest number)
Hence the number of students that were selected by the environmental teacher in the sample is 60
Isang uri ng economic system ang market economy kung saan mahalagang mapag-aralan ang supply o demand ng isang ekonomiya.
Sa pamamagitan ng market economy, nalalaman ang produksiyon at presyo ng mga serbisyo at produkto batay sa kanilang likas yaman o sa kakayahan ng mga mamamayan at mga negosyo.
B. Erosion because water is a common agent of erosion weathering the surface it runs over
