William recorded the grade-level and instrument of everyone in the middle school School of Rock below. Seventh Grade Students
Instrument# of Students
Guitar8
Bass8
Drums7
Keyboard2
Eighth Grade Students
Instrument# of Students
Guitar12
Bass2
Drums10
Keyboard5

Based on these results, express the probability that a seventh grader chosen at random will play an instrument other than guitar as a decimal to the nearest hundredth.

You are assembling pieces of an iron gate to complete a fence. the finished gate will look like the one below. in order to assemble the gate it is important to under how the pieces are related. part 1: how are pies 1 and 2 in the archway related? part 2: how are the rectangular sections 5 and 6 in the center of the gate related to each other?

Find the value of x for which the lines are parallel.

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.