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| | El + 0 https@ www.mathxl.com Student PlayerTest aspx' testid- 185 Take à Test- Johann Cervantes Math 125-HK-Summer 2018 Johann Cervantes &1 7/720/188:4 uiz: Final Quiz Ch 7 Time Remaining: 00:58:05 Subn his Question: 1 pt 1 of 5 (0 complete This Quiz: 5 pts p the random variable X is normally distributed with mean 50 and standard deviation a*7. Compute the probability. Be sure to draw a normal curve with the area corresponding to the probability shaded. ?Click the icon to view a table of areas under the normal curve. Which of the following normal curves corresponds to P(35

Explanation / Answer

mean = 50 , s = 7

P(35 < x <65)
= P((35 - 50)/7 <z < (65 - 50)/7)
= P(-2.1429 < z < 2.1429)

P(35 < x <65) = P(-2.1429 < z < 2.1429) = 0.9679

Correct diagram is option C)

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