@ Take a Test-Danny Ortega Margin ot E or Calculator-e ·correation and regressio

Question

@ Take a Test-Danny Ortega Margin ot E or Calculator-e ·correation and regression i e Assume That Thermometer R s Q BioStats: unt#3Flas c ros x x x : 1 e ! https://www.mathrl.com/Student/PlayerTest.aspx?testid-163986148 C Search Most visited- e Getting Started Mat 150 Intro to Statistics Fully Online Summer lI Section 0502 Danny Ortega 8/15/17 12:54 PM Test: Final Exam Time Remalning: 02:19:06 Submit Test This Question: 1 pt 29 of 30 (16 complete) This Test: 30 pts possible 15 Find the probabilt that a ra do Assume that adults have l scores that are no ally dis tributed with a mean of -100 and a standard deviation Click to visw page 1 of the table Click to view page 2 of the table The probability that a randomly selected adult as n IQ less than 124 is selected adult as an less than (Type an integer or decimal rounded to four decimal places as needed.) Enter your answer in the answer box.

Explanation / Answer

Solution:-

P (X < 124) = 0.9452

Explanation

Since = 100 and = 15 we have:

P ( X < 124 ) = P ( X < 124100 ) = P ((X)/ < (124100)/15)

Since (x)/ = Z and (124100)/15 = 1.6 we have:

P (X < 124) = P (Z < 1.6)

Use the standard normal table to conclude that:

P (Z < 1.6) = 0.9452

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