need help with algebra homework

Mathematics
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Samples of size n = 250 are randomly selected from the U.S. census data, and the median income is found for each sample. What is the distribution of the sample medians?

A.normal (approximately)

B.not enough information provided

C. skewed to the left

D.

May 21st, 2015

normal,,,,.............................................................

May 21st, 2015

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