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A vendor at the a baseball stadium must decide whether to sell ice cream or soft drinks at today's game.
Game show shows you a large revolving drum containing four identical white envelopes that have been thoroughly mixed in the drum.
A company examines homeowners records and sees that the mean loss from wind annually is $250 per house with std dev of $1000.
According to police sources a car with a certain protection system will be recovered 93% of the time. Find the probability that 5 of 8 stolen cars
If you are calculating something using a table, the number of decimal places from the table is expected. like z=1.00, table value is .8413
The director of admissions at Kinzua University in Nova Scotia estimated the distribution of student admissions for the fall semester on the basis of past
The electric company is in the process of building a new power plant. There is some uncertainty regarding the size of the plant to be built.
The number of calls received by an office on Monday morning between 8:00 AM and 9:00 AM has a probability distribution with a mean of 4.
Use the normal approximation without the correction factor to find the probabilities in the following
A group of medical professionals is considering the construction of a private clinic. If medical demand is high i.e. there is a favorable market for the clinic
A mini license plate for a toy car must consist of three numbers followed by a letter. Each number must be a 1, 3, or 5. Repetition of digits is NOT permitted.
A mini license plate for a toy car must consist of a number followed by two letters. Each letter must be a C, A or R. Each number must be a 3 or 7
Test the following function to determine whether it is a probability function:
Suppose the age distribution in a city is as follows: Under 18 (22%) 18-25 (18%) 26-50 (36%) 51-65 (10%) over 65 (14%)
If the wheel is spun and each section is equally likely to stop under the pointer, determine the probability that the pointer lands on 20.
You are warming up with the dice in the lobby of a casino before making your move to the casino floor. Suppose you have two regular 6-sided dice
Suppose that you have two regular 6-sided dice, with sides numbered from 1 to 6 on each die. What is the probability of rolling them both at once
Assume that the population of heights of female college students is approximately normally distributed with mean µ of 67 inches and standard deviation
The Lake Placid Town Council has decided to build a new community center to be used for conventions, concerts, and other public events
An airline tracks data on its flight arrivals. Over the past six months, 65 flights on one route arrived early, 273 arrived on time, 218 were late, and 44
Medical studies have shown that 10 out of 100 adults have heart disease. When a person with heart disease is given an EKG test, a 0.9 probability exists
If you roll a die 40 times and 9 of the rolls result in a "5," what empirical probability was observed for the event "5"?
A company is interested in evaluating its current inspection procedure on shipments of 20 identical items. They take a sample of 5 and accept the shipment
The following table gives the median incomes of families by level of income and geographical region.
The Republican party is interested in studying the number of Republicans that might vote in a particular Congressional district