Redshift Measurements of a Galaxy Yield a Recession of 1700 $\times$

question 2

Multiple Choice

Redshift measurements of a galaxy yield a recession of 1700 km/s.Hubble's constant H is 23 km/s/10⁶ c·y.The distance to the galaxy is approximately

• A)36 \(\times\) 10⁶ c·y
• B)47 \(\times\) 10⁶ c·y
• C)53 \(\times\) 10⁶ c·y
• D)66 \(\times\) 10⁶ c·y
• E)74 \(\times\) 10⁶ c·y

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Definitions:

Regression Toward The Mean

The tendency for extreme or unusual scores or events to fall back (regress) toward the average.

Unusual Scores

Scores that significantly deviate from the norm or average in any type of assessment, indicating atypical performance or results.

Average

A statistical measure representing the central tendency or typical value of a set of numbers, calculated as the sum of the values divided by the number of values.

Correlation Coefficients

Statistical measures that describe the direction and degree of relationship between two or more variables.