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
Answer:
2192
it's C
It depends what the problem requests
Multiply price per pound by total pounds:
2.50 x 3.5 = 8.75
Total cost = $8.75
