Which of the following is the sample size needed to obtain a margin of error of 2.7% in a 95% confidence interval for p (given p = 0.5)? In other words, we want a proportion +2.7%.

answer

the correct answer is

explanation

the given function is

the excluded values are obtained by solving:

we factor to obtain:

the excluded values are

i think it would be 42cm

δabc ≅ δdcb by sas because

db ≅ ac . . given (side)

bc ≅ bc . . reflexive property (side)

∠dbc ≅ ∠ acb . . alternate interior angles where transversal bc crosses parallel lines bd and ac (included angle)

b. 153 students do not participate in sports and seventy-five 12th graders were surveyed