Answer:
x2+x-4=0
Step-by-step explanation:
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:
0.5600
Step-by-step explanation:
The thousandths place is lower than 5 so then you round down to the nearest ten.