The answer are:
(-4,5)
(2,2)
(-1, -3)
(3,4)
(2,-1)
(-5,6)
Answer:
Sorry need to do some thing else brb
Step-by-step explanation:
Answer: 2x+11
Step-by-step explanation: hope this helps!
Answer:
0.22
Step-by-step explanation:
Sample given is 500, so use z-score for the critical value
Given 95% confidence interval;
∝=100-95 =5% =0.05
∝/2 = 0.05/2 =0.025 ----because you are interested with one tail area
1-0.025= 0.975 -----area to the left
proceed to z-table to read 0.975 = 1.96 as the critical value
standard deviation from the question is 2.5 but because this is a sample then;
standard error for the mean is= standard deviation/√sample= 2.5/√500
=0.1118
Margin of error=1.96*0.1118 =0.2191
