Question

23) The incomes of trainees at a local mill are normally distributed with a mean of $1100 and a standard deviation of $150. What percentage of trainees earn less than $900 a month? A) 9.18% B) 90.82% C) 40.82% Define X= The incomes of trainess at a local mill D) 35.31% 24) A bank's loan officer rates applicants for credit. The ratings are normally distributed with a mean of 200 and a standard deviation of 50. If an applicant is randomly selected, find the probability of a rating that is between 200 and 275. A) 0.4332 Define X= B) 0.5 C) 0.0668 D) 0.9332 25) The weekly salaries of teachers in one state are normally distributed with a mean of $490 and a standard deviation of $45. What is the probability that a randomly selected teacher earns more than $525 a week? A) 0.1003 Define X= B) 0.7823 C) 0.2177 D) 0.2823 26) The diameters of pencils produced by a certain machine are normally distributed with a mean of 0.30 inches and a standard deviation of 0.01 inches. What is the probability that the diameter of a randomly selected pencil will be less than 0.285 inches? A) 0.0596 B) 0.0668 C) 0.9332 Define X = D) 0.4332 4 23) 24) 25) 26)

          23) The incomes of trainees at a local mill are normally distributed with a mean of $1100 and a
standard deviation of $150. What percentage of trainees earn less than $900 a month?
A) 9.18%
B) 90.82%
C) 40.82%
Define X= The incomes of trainess at a local mill
D) 35.31%
24) A bank's loan officer rates applicants for credit. The ratings are normally distributed with a
mean of 200 and a standard deviation of 50. If an applicant is randomly selected, find the
probability of a rating that is between 200 and 275.
A) 0.4332
Define X=
B) 0.5
C) 0.0668
D) 0.9332
25) The weekly salaries of teachers in one state are normally distributed with a mean of $490 and a
standard deviation of $45. What is the probability that a randomly selected teacher earns more
than $525 a week?
A) 0.1003
Define X=
B) 0.7823
C) 0.2177
D) 0.2823
26) The diameters of pencils produced by a certain machine are normally distributed with a mean
of 0.30 inches and a standard deviation of 0.01 inches. What is the probability that the
diameter of a randomly selected pencil will be less than 0.285 inches?
A) 0.0596
B) 0.0668
C) 0.9332
Define X =
D) 0.4332
4
23)
24)
25)
26)

23) The incomes of trainees at a local mill are normally distributed with a mean of 1100 and a
standard deviation of150. What percentage of trainees earn less than 900 a month?
A) 9.18%
B) 90.82%
C) 40.82%
Define X= The incomes of trainess at a local mill
D) 35.31%
24) A bank's loan officer rates applicants for credit. The ratings are normally distributed with a
mean of 200 and a standard deviation of 50. If an applicant is randomly selected, find the
probability of a rating that is between 200 and 275.
A) 0.4332
Define X=
B) 0.5
C) 0.0668
D) 0.9332
25) The weekly salaries of teachers in one state are normally distributed with a mean of490 and a
standard deviation of 45. What is the probability that a randomly selected teacher earns more
than525 a week?
A) 0.1003
Define X=
B) 0.7823
C) 0.2177
D) 0.2823
26) The diameters of pencils produced by a certain machine are normally distributed with a mean
of 0.30 inches and a standard deviation of 0.01 inches. What is the probability that the
diameter of a randomly selected pencil will be less than 0.285 inches?
A) 0.0596
B) 0.0668
C) 0.9332
Define X =
D) 0.4332
4
23)
24)
25)
26)

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