C wwwwebassign.net/web/Student/Assignment-Responses/last?dep. 16362499 Use the f
ID: 3245426 • Letter: C
Question
C wwwwebassign.net/web/Student/Assignment-Responses/last?dep. 16362499 Use the following information to answer the next exercise. X N54, 8) Find the probability that x>57. (Round your answer to four decimal places.) How can you use the mean and standard deviation to identify the position of the real world measure in the distribution? subrnitanswer saveProgres ·Practice Another Version! My Notes Ask Your Use the following information to answer the next exercise Find the 90th percentile. (Round your answer to two decimal places.) 18. Notes O Ask Your Find the probability that x is between six and 13. (Round your answer to faur decimal places.) xN(7, 3) 19. 0 -1 points My Notes Ask Your Find the maximum of x in the bottom quartile. (Round your answer to four decimal places.) X N(7, 9)Explanation / Answer
14)
P(X > 57)
= P(Z > 57-54/8)
= P(Z > 0.375)
= 0.3538
17)
P(X < x) = 0.9
=>
P(Z < x-54/8) = 0.9
=>
x-54/8 = invnorm(0.9)
=>
x = 64.256
18)
P(6 < X < 13) = P(X<13) - P(X < 6)
= P(Z < 13 - 7/3) - P(Z< 6-7 /3)
= P(Z < 2) - P(Z < -1/3)
= 0.9772 - 0.3695
= 0.6077
19)
P(X < x) = 0.25
=>
x -7/9 = invnorm(0.25)
x = 13.066
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