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A student taking Operations Management will receive one of the five possible grades for the course: A, B, C, D, or F. The distribution of grades over the past two years is as follows:
Grad Number of Students
A 85
B 90
C 70
D 55
E ?
If this past distribution is a good indicator of future grades,
a. If there is 20% probability of getting C, what is the probability of getting D?
b. Suppose you already know that the student didn't get A, what is the probability that the student got B
the stewart aviation products company has been successfully manufacturing aircraft al- timeters with errors normally
Assume the standard deviation of the distribution is 2.5 pounds. Find the probability that the mean of a sample of 55 families will be between 17 and 18 pounds.
refer to the following table for questions 1 2 and 3. show all work. just the answer without supporting work will
What is the probability that next week's show will: Have between 30 and 37 million viewers? (Round z-score computation to 2 decimal places and your final answer to 4 decimal places.
suppose that there are seven prospective jurors four men and three women who might be impaneled tosit on a jury in a
Suppose C and D are both mutually exclusive and collectively exhaustive. Further, P(C|A) = 0.7 and P(D|B) = 0.5. What are P(C) and P(D)?
Find the value-at-risk at the confidence level 95%, that is, the amount of capital the bank needs to have to buffer its possible losses with probability 95%
A state economist consulted by the realtor believes there is a 0.70 chance the economy will continue its improvement during the next 6 months. What is the probability that the piece of property will be sold during the period?
a survey is to be made of the prevalence of the common disease in a large population. for any disease that affects
Lunchtime. Does how long children remain at the lunch table help predict how much they eat? The table gives data on 20 toddlers observed over several months.
We select 60 people at random. Is it reasonable to use a Normal model to describe the possible distribution of the proportion of the group that has left-brain.
Psychology and Human Behavior There are many urban legends involving a full moon and human behavior. Research at the University of Basel in Switzerland.
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