pls answer 5a,5b,5c The flight crews of ABC Airline Company have a mean hourly wage of P480 with a standarddeviation of P50. If a crew member is selected at random, what is the probability that thecrew member earns:1. from P400 to P5002. more than P4503. less than P5504. at most P4255. A personnel manager claims to have just hired someone with an IQ that belongs to the top5% of all recent business school graduates. The relevant distribution of IQ's is known to benormal, with a mean of 120 points and a standard deviation of 10 points. If a graduate ischosen at random, what is the probability that his lQ score is:a. more than 115b. lower than 135b lee lo pilidedong edr andgnitasC. between 125 and 130whod. What should be the IQ of a person to be included in the top 5%?

HERE mean = 120 points standard deviation = 10 points x= IQ score

Answered: 1. from P400 to P500 2. more than P450…

Math

Probability

1. from P400 to P500 2. more than P450 3. less than P550 e125

Holt Mcdougal Larson Pre-algebra: Student Edition 2012

1st Edition

ISBN:9780547587776

Author:HOLT MCDOUGAL

Publisher:HOLT MCDOUGAL

Chapter11: Data Analysis And Probability

Section: Chapter Questions

Problem 8CR

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Question

pls answer 5a,5b,5c

The flight crews of ABC Airline Company have a mean hourly wage of P480 with a standard
deviation of P50. If a crew member is selected at random, what is the probability that the
crew member earns:
1. from P400 to P500
2. more than P450
3. less than P550
4. at most P425
5. A personnel manager claims to have just hired someone with an IQ that belongs to the top
5% of all recent business school graduates. The relevant distribution of IQ's is known to be
normal, with a mean of 120 points and a standard deviation of 10 points. If a graduate is
chosen at random, what is the probability that his lQ score is:
a. more than 115
b. lower than 135
b lee lo pilidedong edr and
gnitas
C. between 125 and 130
who
d. What should be the IQ of a person to be included in the top 5%?

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