Suppose the teacher begins recording on a digital camera with an hour available. show that there is enough time to record everyone if she gives a 15 minute introduction at the beginning of class and every student takes a minute to get ready. much time is left on the digital camera?

What number should be added to both sides of the equation to complete this square? x^2-10x=7

Planning for the possibility that your home might get struck by lighting and catch on fire is part of a plan

Apsychology student wishes to investigate differences in political opinions between business majors and political science majors at her college. she randomly selects 100 students from the 260 business majors and 100 students from the 180 political science majors. does this sampling plan result in a simple random sample? why or why not? no, because each group of 200 students in the sample does not have the same chance of being selected. yes, because each group of 200 students in the sample has the same chance of being selected. no, because each individual student does not have an equal chance of being selected. yes, because each individual student has the same chance of being selected.