A sample of 92 psychology graduates found an average salary of $76 K/year. Assume σ=$22 K/year. Find the 98% confidence interval for the average salary of a psychology graduate. Use three decimal places. $( Incorrect: Your answer is incorrect. , Incorrect: Your answer is incorrect. ) K/year

The blue whale is the largest animal living on the earth. the average blue whale measures 100 feet long (30 meters) and weighs 300,000 pounds (136,000 kilograms). a whale’s head is 1⁄3 of the length of its body. a new baby whale is 1⁄4 the length of a grown whale. the average man is 1⁄17 the length of a blue whale, and 1⁄1,818 its weight. a human baby measures 1⁄4 of the length of an adult. calculate the following information: how long is a whale’s head? how long is a new baby whale? how tall is the average man? how much does the average man weigh? how tall is the average human baby?

If a || b and b | y, then ? a) x || y. b) x | a. c) a | y. d) a || y.

Prove sin2a + cos2a - 1 / sin2a + cos2a + 1 = 1 - tana / 1 + cota