Asurvey was done that asked people to indicate whether they preferred running outdoors or running indoors. the results of the survey are shown in the two-way table.

amir is making a relative frequency table from this data.

what operation should amir perform to determine the relative frequency of a person age 30 and younger who prefers to run outdoors?

divide 382 by 1027.

add 681 to 1027, then divide by 1027.

subtract 382 from 1027, then divide by 1027.

divide 681 by 1027.

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.