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Persons entering a blood bank are such that 1 in 3 have type O+ blood and 1 in 15 have type O- blood. Consider three randomly selected donors for the blood bank. Let X denote the number of donors with type O+ blood and Y denote the number with type O- blood. Find the probability distributions for X and Y. Also find the probability distribution for X + Y , the number of donors who have type O blood.
a researcher believe that college students spend a different amount of time talking on the phone than they do instant
If he were to randomly select 120 corks from the next box, then how many of these corks would John expect to be undersized?
suppose that the reaction time sec to a certain stimulus is a continuous random variable with a density function given
Waiting time at a bank drive-in widow the average waiting time at a drive-in window of local bank is 10.3 minutes,
it has been stated that 62 of americans drink beer wine or hard liquor at least occasionally. a study was later
1. What is your point estimate for the population proportion? 2. What is the critical value for a 90% Confidence Interval of the population proportion? Is your Critical Value a Z-score or a T-score? How did you determine which to choose?
the jones family had a total income of 73000 and paid 22 of their income to taxes. the brown family had a total income
Assume that each bit is sent n times, where n is an odd number, and that the receiver assigns the value decoded in the majority of the bits. What is the minimum value of n necessary so that the probability that the correct value is assigned is at ..
a man and a woman make an appointment to meet between 5 p.m and 6 p.m at a certain location and they agree that
Forecasting: The sales data for the lone star Sports Apparel Company for the last 12 years are as follows: What is the 2001- 2012 compound growth rate?
Utilize statistical software to conduct data analysis
the weather forecast for tomorrow indicates that there is a 70 chance that there will be a high wind speed. the
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