Jeff wants to go to a university where the tuition is 9,000 per year.
he has a scholarship that pays for %70 of his tuition. he has saved 3,000 toward the first year's tuition. does he have enough to pay fir the first year's tuition? explain
pls will mark

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.

The two square pyramids are similar. find the total volume of both pyramids if the ratio of their surface areas is 9/16

He weights of 2-pound bags of best dog food are approximately normally distributed with a given mean  and standard deviation  according to the empirical rule, what percentage of the bags will have weights within 3 standard deviations of the mean? 47.5%68%95%99.7%