54 POINTS FOR THE ANSWER!
Suppose that many large samples are taken from a population and that the sample proportions are normally distributed, with a mean of 0.22 and a standard error of 0.029. What is the 95% confidence interval?
A.
(0.104 to 0.336)
B.
(0.133 to 0.307)
C.
(0.162 to 0.278)
D.
(0.191 to 0.249)

Look, when you want to do something like put it like x^2. x2 could mean x² or x₂. so to clear confusion, know the notation. to find the product multiply the x's and you get -8x and the y's and you get 6y. since it's all being multiplied it is just -8x6y, or answer a. although the better answer is -48xy(combining -8 and 6) because you should multiply constants whenever you can.