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A child takes four of the cards and places them in some order. What is the probability that he obtains a four-digit number less than 3265?
A two tailed hypothesis test is being uses to evaluate a treatment effect with o= .05. if the sample data produce a z- score of z= -2.24
A bag contains 8 black balls and 6 white balls. Two balls are drawn out at random, one after the other without replacement. Calculate the probabilities.
The probability that a new car is damaged is 0.02. 400 cars are being inspected . What is the probability that the number of damaged cars.
Two separate samples, each with n=15 individuals, receive different treatments. After treatment, the first sample has SS=1740 and the second has SS=1620.
If the player enters one lottery each week, what is the expected number of weeks until a player matches all 6 numbers in the state's sample?
A building contractor claims he can renovate a 300 square foot kitchen and dining room in 40 work hours plus or minus 5 hours.
A researcher conducts an independent-measures study comparing two treatments and reports the t statistics as t(25)= 2.071.
From literature research, a physiologist learns that the national average height for male college students is 70 inches.
One option in a roulette game is to bet $18 on red.There are 18 red compartments,18 black compartments,and 2 compartments neither red nor black.
Scores on the GRE (graduate record examination) are normally distributed with a mean of 510 and a standard deviation of 148.
On average, what value is expected for the t statistic when the null hypothesis is true?
A silver dollar is flipped twice, calculate the probability of each of the following occurring- A head on the first flip.
What is the probability of getting at least 1 diamond in a 5-card hand dealt from a standard 52-card deck?
In how many ways can the first, second, and third prizes be awarded if no ticket holder can win more than one prize?
Masculine themed words are frequently used in job recruitment materials, especially for job advertisements in male-dominated areas
What is the probability that tomorrow will be rainy and the day after tomorrow will be sunny?
For which of the following situations would a repeated measures research design be appropriate?
The probability of a newborn baby being a girl is 0.49. If four babies are born in a hospital on one day, what is the probability that all four are girls?
How many different 6-letter code words can be formed from the first 8 letters of the alphabet if adjacent letters must be different?
A psychologist would like to investigate the relative effectiveness of three therapeutic techniques for treating mild phobias.
Sixty percent of the employees in adepartment are women. One third of the women drive foreign cars. The rest drive domestic cars.
What are some practical uses of probability theory? Can you think of two examples in your work day or personal experiences?
Use an anova with o=.05 to determine whether there are any significant mean differences among the three groups of birds. (use two decimal places)
The mean age of ten people in a room is 15 years. A 50-year-old person walks in. How much is the mean increased?