13. 1 propose to study the relationship
between self-esteem and reading skill levels
among students at clairmont high school. at
clairmont, about 1 4 percent of the student
body are seniors, 24 percent are juniors, 30
percent are sophomores, and 32 percent are
freshmen. what kind of sampling approach
will i be most likely to use?

Water is siphoned from a large tank and discharges into the atmosphere through a 50-mm diameter tube. the end of the tube is b = 2.6 m below the tank bottom which is a = 6.7 m deep, and viscous effects are negligible. determine the maximum height h over which the water can be siphoned without cavitation occurring. atmospheric pressure is 101.4 kpa, and the water vapor pressure is 1.79 kpa (absolute). report your answer in meters to two decimal places.