The 80% confidence interval for the population standard deviation is 7.7 interval if we changed the confidence level to 90%?
Select one:
A. (7.9, 13.1)
B. (8.2, 12.1)
C. (6.85, 14.77)

The weights of broilers (commercially raised chickens) are approximately normally distributed with mean 1387 grams and standard deviation 161 grams. what is the probability that a randomly selected broiler weighs more than 1,425 grams?

Landon wrote that 3−2.6=4. which statement about his answer is true?

What is the slope of the line shown below?