Question 1168121
{{{(x - 15)/4}}} = 1.75 (from z-table)
<pr>
x - 15 = 4(1.75)
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x - 15 = 7
<pr>
x = 22
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If Jessica leaves her house by 7:38 AM (22 minutes before 8:00 AM), she will be late only 4% of the time.