Given Information:
Population size = n = 300
standard deviation = σ = 15
confidence level = 99%
Required Information:
Margin of error = ?
Step-by-step explanation:
The margin of error is a measure of the effectiveness of your survey.
Margin of error = z*(σ/√n)
z-score corresponding to 99% confidence level = 2.58
Margin of error = ±2.58*(15/√300)
Margin of error = ±2.58*(0.866)
Margin of error = ±2.23
Hence the correct option is C ±2.23
Answer:
4
Step-by-step explanation:
3(k-2)² -2
3(k²-4k+4) -2
3k²-12k+12-2
3k² -12k +10
Answer:
Step-by-step explanation:
Answer:
3/4
Step-by-step explanation:
