Atotal of 4 buses carrying 148 students from the same school arrives at a football stadium. the buses carry, respectively, 40, 33, 25 and 50 students. one of the students is randomly selected, each student with equal probability. let random variable x denote the number of students who were on the bus carrying the randomly selected student. one of the four bus drivers is also randomly selected, each driver with equal probability. let random variable y denote the number of students on the bus of the randomly selected driver.(a) which of e[x] or e[y] do you think is larger? why? (b) compute e[x] and e[y]

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?

I’m still confused on how to work the percentages

On the way home from visiting his family, vincent’s plane cruised at an altitude of 3.2 × 10^4 feet. he had heard that a man named felix baumgartner skydived from an altitude of 1.28 × 10^5 feet. vincent wants to know how much higher felix went on his skydiving trip. question 1 you have already seen how adding numbers works in either scientific notation or standard notation. but can you subtract numbers in scientific notation and get the same results as subtracting in standard notation? to find out, first solve vincent’s problem in standard notation. part a write the cruising altitude of vincent’s plane in standard notation.