Answer: option D
Step-by-step explanation:
The formulae for standard error = standard deviation/√n
But population standard deviation = 1.8 and sample size = n = 81
Standard error = 1.8/√81 = 1.8/9 = 0.2
[(21-13)+(32-24)] x 4
[(8)+(8)] x 4
16 x 4
= 64
If this helped you, please list me as brainliest!
well from my understanding of the problem and calculations i would say.. (-5.5,0)
Answer:
(-1, 1)
Step-by-step explanation:
It's where they intersect.
