A researcher wants to determine if preschool attendance is associated with high school graduation for low-income students. She randomly assigns low-income children to two groups; one group will attend preschool program, the second group will not attend preschool. The researcher plans to follow the children in the study for 20 years and observe whether or not they graduate from high school.Which of the following is the explanatory variable in this study? The income status of the children Whether or not a subject attends preschool Whether or not a subject graduates high school The length of time it takes a subject to graduate high school

Students with high income parents have a chance to be eligible to receive Youth allowance if _______________________.A.they decide not to get a job while studyingB.they remain single C.they are less than 22 years old D.they have a childE.they live away from home

Which of these is NOT a demographic variable?Group of answer choicesEmployment StatusGenderReligionAge

Prior to graduation, a high school class was surveyed about their plans after high school. The table below displays the results by gender: If the data are summarized by computing the conditional distributions of plans after high school for male and female high school students, what would be the proportion of “2-year college” for the males?

Mrs. Bauer wanted to investigate whether the amount of time students studied for the test would affect their grade. What is the dependent variable in the experiment?Question 4

A researcher records the number of hours spent studying each week by a group of students. What type of variable is this?Group of answer choicesDiscreteOrdinalCategoricalContinuous