Asolution of salt and water contains 75 grams of water per 150 milliliters of the solution. if 1 mole of water weighs 16 grams, moles of water would be present in 30 milliliters of the solution. [round off your answer to two decimal places]

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.