If Star a Has a Temperature That Is Twice as Hot

question 44

Multiple Choice

If star A has a temperature that is twice as hot as the Sun but has the same luminosity as the Sun, the diameter of star A must be _________ times the diameter of the Sun.

• A) 16
• B) 4
• C) 2
• D) 1/2
• E) 1/4

---

Definitions:

Standard Normal Distribution

A normal distribution with a mean of zero and a standard deviation of one, used in many statistical methods.

Z-axis

The axis in a three-dimensional coordinate system representing the depth, perpendicular to both the X-axis (horizontal) and Y-axis (vertical).

Standard Deviations

A metric indicating the extent of variability or spread in a collection of values, denoting how far away the values deviate from the average.

Standard Normal Distribution

A type of normal distribution where the mean is 0 and the standard deviation is 1, used in statistics for z-score calculations.