The Distance to the Center of the Virgo Cluster of Galaxies

question 38

Multiple Choice

The distance to the center of the Virgo cluster of galaxies is 5 × 10²³ m.How long does it take light to travel from these galaxies to us?

• A)7,000 years
• B)54,000 years
• C)120,000 years
• D)12 million years
• E)54 million years

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Definitions:

Interval Data

Interval data refers to a type of quantitative data that not only categorizes and orders the quantities but also precisely measures the differences between them. Unlike ordinal data, interval data has equal intervals between values, making mathematical operations meaningful.

Ratio Data

A type of quantitative data that possesses a natural zero point and allows for meaningful comparisons using division, enabling measurement of both differences and ratios between data points.

Variance

Variance is a statistical measure that represents the degree to which a set of observations differ from each other. It is the expectation of the squared deviation of a random variable from its mean, and it gives insights into the dispersion of a dataset.

Standard Deviation

A measure of the amount of variation or dispersion of a set of values.