Jackie Correlates the Number of Hours Spent Studying with Final

question 45

Multiple Choice

Jackie correlates the number of hours spent studying with final grades in a course and finds the correlation is +0.55.When Phil correlates the number of classes missed with final grades in a course,he finds the correlation is -0.75.You should predict that,when the results are plotted using a scatter diagram,

• A) Jackie's data points will cluster more tightly than Phil's data points.
• B) all Phil's data points will fall on a flat horizontal line running from left to right.
• C) Phil's data points will cluster more tightly than Jackie's data points.
• D) all Jackie's data points will fall on a vertical line running from top to bottom.

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Definitions:

Growth Factor

A hormone or chemical, secreted by one cell, that may stimulate or inhibit growth of another cell or cells.

Diploid State

The diploid state refers to a cell condition in which two sets of chromosomes are present, one from each parent, characteristic of most adult organisms.

Replicating DNA

The process of duplicating the DNA molecule, ensuring that each new cell receives an exact copy of the organism's genetic material.

Cell Cycle

A series of events that take place in a cell leading to its division and duplication, consisting of interphase (G1, S, G2) and mitotic phase.