The Following Information Regarding a Dependent Variable Y and an Independent

question 25

Multiple Choice

The following information regarding a dependent variable y and an independent variable x is provided: $$\begin{array} { l l } \Sigma x = 90 & \sum \left( y - \frac { y } { ) } \right) ( x - x ) = - 156 \\\Sigma y = 340 & \Sigma \left( x - \frac { x } { 2 } \right) ^ { 2 } = 234 \\n = 4 & \sum ( y - y ) ^ { 2 } = 1974 \\\mathrm { SSR } = 104 &\end{array}$$ The total sum of squares (SST) is

• A) -156.
• B) 234.
• C) 1870.
• D) 1974.

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Definitions:

5-HTTLPR Gene

A variation in the genetic sequence of the serotonin transporter gene, which is thought to impact the efficiency of serotonin transport and has been associated with susceptibility to depression and anxiety disorders.

Allele

Alternate versions of a gene, which develop through mutation and exist at the same position on a chromosome.

Intervention Study

A research method involving the intentional action or treatment applied to study subjects to observe its effects, often used in medical and psychological studies.

Constructive

Serving a useful and positive purpose, often implying the building up or improvement of something.