the table shows the distribution by agr of a random sample of 3580 moviegoers ages 12 to 74. if one moviegoer is randomly selected from this population find the probability expressed as a simplified fraction that the moviegoers age is at least 25. the probability is?​

Solve 3x-18=2y and 5x-6y=6 by elimination show work

The distribution of the amount of money spent by students for textbooks in a semester is approximately normal in shape with a mean of $235 and a standard deviation of $20. according to the standard deviation rule, how much did almost all (99.7%) of the students spend on textbooks in a semester?

Non-euclidean geometry was discovered when, in seeking cleaner alternatives to the fifth postulate, it was found that the negation could also be true a. true b. false