One pack 30 pencils is 7.97 and the other pack of 12 pencils is 4.77 which is the better buy? and why?

What is the shape of the height and weight distribution

As voters exit the polls, you ask a representative random sample of voters if they voted for a proposition. if the true percentage of voters who vote for the proposition is 63%, what is the probability that, in your sample, exactly 5 do not voted for the proposition before 2 voted for the proposition? the probability is

Find the length of the normal and the angle it makes with the positive x-axis. (see pictured below)