A Red Supergiant Is Observed in a Globular Cluster in Another

question 47

Multiple Choice

A red supergiant is observed in a globular cluster in another galaxy (located 150,000 light-years away) . It is predicted, based on its mass and age of the star, that it will supernova in about10,000 years. When will this supernova be visible on Earth?

• A)10,000 years from now
• B)10,000 years ago
• C)150,000 years from now
• D)150,000 years ago
• E)160,000 years from now

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Definitions:

Normal Model

A probability distribution that is symmetrical about its average, indicating that occurrences close to the mean are more common than those further away.

Central 68%

Central 68% is a statistical term that refers to the percentage of data within one standard deviation of the mean in a normal distribution, implying that about 68% of the data fall within this range.

Standard Deviation

A measure of the amount of variation or dispersion in a set of values, indicating how much the values differ from the mean.

IQR

Interquartile Range, a measure of variability, indicates the range within which the middle 50% of a data set lies.