Question

1. (l131) is the following sentence true? to calculate absolute value, you just take the negative of whatever quantity is inside the absolute - value bars. a) yes b) no c) maybe d) sometimes e) not applicable 2. (l134) is the following sentence true? a function is any relationship between two variables, such as x and y. a) yes b) no c) maybe d) sometimes e) not applicable 3. (l139) to calculate probability, you divide the favorable outcomes by the possible outcomes. a) yes b) no c) maybe d) sometimes e) not applicable

Explanation:

Step1: Analyze absolute - value concept

The absolute value of a non - negative number is the number itself, and the absolute value of a negative number is its positive counterpart. For example, $|5| = 5$ and $|-5|=5$. It is not always taking the negative of the quantity inside the absolute - value bars.

Step2: Analyze function concept

A function is a special relationship between two variables where for each input value (in the domain), there is exactly one output value (in the range). Just any relationship between two variables is not a function. For example, $x^{2}+y^{2}=1$ is a relation but not a function since for some $x$ values, there are two $y$ values.

Step3: Analyze probability formula

The probability of an event $P(E)$ is calculated by the formula $P(E)=\frac{\text{Number of favorable outcomes}}{\text{Number of possible outcomes}}$.

Answer:

1. b) No
2. b) No
3. a) Yes