Suppose a random sample of 100 fifth-graders is to be obtained. Without assuming x (the time it takes a fifth-grade student to read a certain passage) is normally distributed, what is the approximate probability that the sample mean reading time is between 1.9 and 2.2 minutes?

Arandom sample of 150 high school students were asked whether they have a job. the results are shown in the table. have a job do not have a job male 48 35 female 41 26 select a ord or phrase from the drop-down menus to correctly complete the statements describing the association.

Liz had 140 pens and inna had 100 pens. after inna gave liz some pens, liz had 3 times as many pens as inna. how many pens did inna give liz?

Anyone? 15m is what percent of 60m; 3m; 30m; 1.5 km?