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You are visiting Las Vegas and would like to come home with more money than you arrived with. Use your knowledge of probability to answer the following questions: (Show all work, not just answers)
A) What is the probability of drawing three aces in a row without replacement from a deck of 52 ordinary playing cards?
B) What is the probability of rolling two fair dice and obtaining a sum of 5?
C) What is the probability of drawing either a jack or a heart from a full deck of 52 cards? (Hint: remember that these two criteria are NOT mutually exclusive. One of the hearts will be a jack of hearts, so you will need to subtract out the overlap; also, FYI, there are 13 hearts and 4 jacks in a deck of cards.
A retailer wants to estimate with 99% confidence the number of people who buy at his store. A previous study showed that 15% of those interviewed had shopped at his store.
Produce a printout of the frequency tables, showing the total of both frequencies.
If we assume that attention spans are normally distributed, find a 95% confidence interval for the mean attention span of children playing with this new toy. What is the lower limit of the confidence interval.
High School GPA is normally distributed with a mean of 3.06 and a standard deviation of 0.40. The probability of a randomly chosen student having a HS GPA between 3.54 and 3.80 is
what is the purpose of forecasting? why are forecasts not always correct? what are the limitations of
a technician plans to test a certain type of resin developed in the laboratory to determine the nature of the time it
Find the probability that it has a defective bulb or defective battery, a good bulb or good battery,a good bulb and good battery.
a set of 10 data values has a mean and median of 1425 and ranges from a minimum value of 987 to a maximum value of
question a company hired 20 salespeople and gave them an initial sales skills examination test scores ranged from 68
The weight of 500 american men were taken and the sample mean was found to be 194 pounds with a standard deviation of 11.2 pounds. what percentage of men have weights between 175 and 225 pounds
There were 25 subjects included in each of the combinations of gender and smoking status. One of the variables measured was the heart rate after six minutes of exercise. A two-way ANOVA is performed with the resulting ANOVA table given below
a group of students at a school take a history test. the distribution is normal with a mean of 25 and a standard
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