What percent of the data lies outside of three standard deviations of the mean?

Sarah used her calculator to find sin 125 degrees. she wrote down sin sin125 degrees.57. how could sarah recognize that her answer is incorrect?

Jermaine has t subway tokens. karen has 4 more subway tokens than jermaine. raul has 5 fewer subway tokens than jermaine. which expression represents the ratio of karen's tokens to raul's tokens

In the sixth grade 13 out of 20 students have a dog if there are 152 sixth grade students how many of them have a dog