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DR. GRAMLING BUAL 2600 FINAL EXAM QUESTIONS AND ANSWERS 2024/2025 $10.29
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DR. GRAMLING BUAL 2600 FINAL EXAM QUESTIONS AND ANSWERS 2024/2025

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DR. GRAMLING BUAL 2600 FINAL EXAM QUESTIONS AND ANSWERS 2024/2025 A normal distribution with mean equal to zero and a standard deviation equal to one is called the ________ normal distribution. a. continuous b. standard c. uniform d. exponential - RIGHT ANSWER -b. standard HW #10 A s...

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  • February 25, 2025
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DR. GRAMLING BUAL 2600 FINAL EXAM
QUESTIONS AND ANSWERS 2024/2025

A normal distribution with mean equal to zero and a standard deviation equal to one is called
the ________ normal distribution.



a. continuous

b. standard

c. uniform

d. exponential - RIGHT ANSWER -b. standard



HW #10



A standard normal distribution has a mean of ________ and standard deviation of ________.



a. one, one

b. zero, one

c. one, zero

d. zero, zero - RIGHT ANSWER -b. zero, one



HW #10



A(n) ________ is a collection of sample space outcomes.



a. event

,b. set

c. experiment

d. probability - RIGHT ANSWER -a. event



HW #10



Given that the length an athlete throws a hammer is a normal random variable with mean 50
feet and standard deviation 5 feet, what is the probability he throws it no less than 55 feet?



a. .8413

b. .6826

c. .3174

d. .1587 - RIGHT ANSWER -d. .1587



HW #10



Given that X is a normal random variable, the probability that a given value of X is below its
mean is ________.



a. 1

b. less than .5

c. greater than .5

d. equal to .5 - RIGHT ANSWER -d. equal to .5



HW #10

,Probabilities must be assigned to each sample space outcome so that the probabilities of all the
sample space outcomes add up to ________.



a. 0

b. 1

c. between 0 and 1

d. between −1 and 1 - RIGHT ANSWER -b. 1



HW #10



Probabilities must be assigned to sample space outcomes so that the probability assigned to
each sample space outcome must be between ________, inclusive.



a. −1 and 1

b. 0 and 1

c. −100 and 100

b. 0 and 100 - RIGHT ANSWER -b. 0 and 1



HW #10



T/F: For a continuous distribution, P(X ≤ 100) = P(X < 100). - RIGHT ANSWER -True



HW #10



T/F: In any probability situation, either an event or its complement must occur. - RIGHT ANSWER
-True

, HW #10



T/F: The mean and median are the same for a normal distribution. - RIGHT ANSWER -True



HW #10



The ________ of an event is a number that measures the likelihood that an event will occur
when an experiment is carried out.



a. outcome

b. observation

c. intersection

d. probability - RIGHT ANSWER -d. probability



HW #10



The fill weight of a certain brand of adult cereal is normally distributed with a mean of 910
grams and a standard deviation of 5 grams. We calculated the value of z for a specific box of this
brand of cereal, and the z value was negative. This negative z value indicates that



a. the fill weight may be more or less than 910 grams depending on the value of the standard
deviation.

b. we made a mistake in our calculations, as z must always be a nonnegative number.

c. the fill weight is more than 910 grams.

d. the fill weight is less than 910 grams.

e. the fill weight is equal to 910 grams. - RIGHT ANSWER -d. the fill weight is less than 910 grams.

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