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GE 219

# GE 219 - Arean Asgariani GE 219 5 The mode is \$1,000 to...

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Arean Asgariani GE 219 5. The mode is \$1,000 to \$2,999. The median is \$10,000 to \$12,499. The formula for the interquartile range is Q3-Q1. First find the value of Q1: One way to locate the value at the first quartile is by locating the value associated with the 25 th percentile, value 3 (\$3,000 to \$3,999). You can also locate the case at Q, with the following formula (N+1)(.25)=(119+1)(.25)=(120)(.25)=30. Then locate the value at Q, that is associated with case 30, value 3 (\$3,000 to \$3,999). Next locate the value at Q3 using the 75 th percentile. The value at the 75 th percentile is value 14, \$22,500 to \$24,999. You can also locate the case at Q3 with the following formula (N+1)(.75)=(119+1)(.75)=(120)(.75)=90. Then locate the value at Q3 that is associated with case 90, value 14 (\$22,500 to \$24,999). Find the interquartile range: Q3 – Q1= 14-3= 11. In relation to the range (20 – 1 =19), the distribution is somewhat heterogeneous. Half of the respondents ages 18-25 earn from \$3,000 to \$24,999 a year. One quarter earn \$3,999 a year or less, and one quarter earn \$22,500 a year or more.

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GE 219 - Arean Asgariani GE 219 5 The mode is \$1,000 to...

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