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
Answer:
B. Keep it, because it provides sensory details that help the writer illustrate the concept being discussed in the paragraph.
Explanation:
Answer B
Correct. Providing sensory details that encourage the audience to imagine exactly what a smartphone sounds like and how the majority of people react to those sounds enables the writer to more effectively describe the compulsion to check the smartphone after each notification.
#10 would be the main one (I dont know what to call it but the main one)
Explanation:
the person may be confused thinking or problems concentrating learning
