Answer:
271 people
Step-by-step explanation:
Margin of error = critical value × standard error
At 90% confidence, the critical value is 1.645.
Standard error for a proportion is s = √(p (1 − p) / n).
0.05 = 1.645 √(0.52 (1 − 0.52) / n)
n = 271
Answer:
2(2/5x+2)= 2*2/5x + 2*2= 4/5x+4
1.60 mi +1.75 mi = 3.35 mi = 3 7/20 mi
