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Colton spent the following amounts in the cafeteria last week: $9, $1, $5, $1, and $4. Consider these five amounts a population. a. Determine the

Colton spent the following amounts in the cafeteria last week: $9, $1, $5, $1, and $4. Consider these five amounts a population.

a. Determine the mean of the population. (Round the final answer to 1 decimal place.)

Arithmetic mean $

b. Determine the variance. (Round the final answer to 1 decimal place.)

Variance

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