It is thought that prehistoric Indians did not take their best tools, pottery, a

Question

It is thought that prehistoric Indians did not take their best tools, pottery, and household items when they visited higher elevations for their summer camps. It is specific cultural affiliation as the elevation of the site increases. Let x be the elevation (in thousands of feet) for an archaeological site in the southwestern United States. at a given elevation. Suppose that the following data were obtained for a collection of archeological sites in New Mexico. x 5.75 6.50 7.50 7.75 8.00 y 35 50 79 59 94 Find X A. 7.10 B. -7.10 C. 7.44 D. 5.50 E. none of these

Explanation / Answer

X_bar is average of X variable.

X_bar = average= sum of x/sample size

=(5.75+6.5+7.5+7.75+8)/5=35.5/5=7.1

correct ans A. 7.1

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