Answer:
Option f) None of these
Step-by-step explanation:
We are given the following data set:
Sample size, n = 12
Sample mean = 9.4
Sample standard deviation = 0.64
Confidence interval:
Putting the values, we get,

Answer:
Step-by-step explanation:
x^2 + x + 1 - 2x + 5
x^2 - x + 6
Answer:
7x+12 because there is 8x then you subtract 1x which 'll equal 7x and add the 12