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File Edit View History Bookmarks People Window Help Take a Test -christina cognato izz Secure! https://www.mathxl.com/Student/PlayerTest.aspx?testld-168814 118&centerwin-yes; pe MATH 1016-01 Fall 2017 Christina cognato 10/15/17 1:22 AM Test: Test 1: Ch 1-3 Time Remaining: 00:45:33 Submit Test This Question: 1 pt 9of12(0 complete) This Test: 12 pts possible The mean value of land and buildings per acre from a sample of farms is $1500, with a standard deviation of $300. The data set has a bell-shaped distribution. Using the empirical rule, determine which of the following farms, whose land and building values per acre are given, are unusual (more than two standard deviations from the mean). Are any of the data values very unusual (more than three standard deviations from the mean)? sts $1895 $2314 $1885 525 $2071 $1131 Which of the farms are unusual (more than two standard deviations from the mean)? Select all that apply A. $1885 B. S2314 c. $1131 D, $525 ceg E. S2071 F. $1895 Which of the farms are very unusual (more than three standard deviations from the mean)? Select all that apply A. S2314 Click to select your answerfs) Chapter 1 Pre-Test 0 of oo

Explanation / Answer

Range of two stadard deviations = 1500-600 to 1500+600 = 900 to 2100

Range of three standard deviations = 1500-900 to 1500+900 = 600 to 2400

Hence,

$525 and $2314 are unusual values. Option B and Option D are correct.

$525 is very unusual value.

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