8-2i is their total score. You can't combine the imaginary numbers and real numbers.
Answer:
(38.1,88.6)
Step-by-step explanation:
We are given the following in the question:
Sample mean,
= 38.3
Sample size, n = 695
Alpha, α = 0.05
Population standard deviation, σ = 3.6
95% Confidence interval:
Putting the values, we get,

Answer:
The answer is 70% if you round it.
Step-by-step explanation:
45 out of 68 is 66 but if you're rounding it the answer is 70%.
Answer:
20
Step-by-step explanation: