The Following Figure Is a Probability Density Curve That Represents

question 25

Multiple Choice

The following figure is a probability density curve that represents the lifetime, in months, of a certain type of laptop battery.

What is the probability that a randomly chosen battery lasts longer than 20 months?

• A)0.49
• B)0.24
• C)0.25
• D)0.51

---

Definitions:

R-chart

A control chart used for monitoring the variability of a process.

Control Limits

Boundaries in process control, within which a process operates efficiently, used to detect signals or causes of variations that could indicate a problem.

Sample Size

The total count of individual samples or observations used within a research study or experiment, critical for the reliability of results.

Control Chart

A graph used to study how a process changes over time, showing plotted values of some statistical measure against time to identify outliers or trends.