Identify the types of sampling errors that exist in the following sampling designs: 1. The local newspaper plans to make a prediction for a senatorial election based on a survey of its readers.
11. A radio show asks people to phone in their views on whether the United States should pay off its debt to China.
III. A new social media website chooses to survey the first 50 members who join to determine whether members favor the appearance of the homepage.

(hurry! ) which expression is equivalent to the following complex fraction?

Which of the following correctly justifies statement four of the two column proof? a. corresponding angles theorem b. transitive property of equality c. vertical angle theorem d. substitution property of equality

According to the 2008 u.s. census, california had a population of approximately 4 × 10^7 people and florida had a population of approximately 2 × 10^7 people. which of the following is true? a. the population of florida was approximately two times the population of california. b. the population of florida was approximately twenty times the population of california. c. the population of california was approximately twenty times the population of florida. d. the population of california was approximately two times the population of florida.