An introductory statistics class decides to investigate whether there is a relat

Question

An introductory statistics class decides to investigate whether there is a relationship between the performance on midterms 1 and 2. The instructor creates a scatter plot of midterm 2 scores (y) versus midterm 1 scores (x). Based on the plot, the following is likely true: the correlation between midterm 1 and midterm 2 scores is positive. students who did well on midterm 1 did not do so well on midterm 2 and vice versa. there is no relationship between midterm 1 and 2 performance None of the answer options is correct. Does exposure to classical music (through instrument lessons or concert attendance) improve children's scholastic performance? In a study, researchers measured the amount of exposure to classical music for many children, along with their scores on the state's academic proficiency exam. The explanatory variable in this study is: the type of instrument a child plays. the child's score on the state's proficiency exam. the amount of a child's exposure to classical music. whether a child passed the state's proficiency exam.

Explanation / Answer

1) The corelation between midterm1 and midterm2 is positive.

Quiz2.

3) The amount of child exposure to classical music

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