Answer:
B. 12.5
Step-by-step explanation:
We have the lowe confidence interval = 185
The upper confidence interval = 210
Mean of X = (lower confidence + upper confidence interval)/2
Mean of X = 185 + 210/2
= 197.5
The margin of error = the upper confidence interval - mean of X
= 210-197.5
= 12.5
Answer: 140 cm
Step-by-step explanation:
A 243x^5-1
B x^2-1
C <span><span>−<span>x5</span></span>+3</span><span>x<span>5
D 12x^7-1</span></span>
