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We wish to train a machine learning algorithm on an array of floating-point numbers in the interval [0.0, 1.0). The data is not evenly distributed, and we wish to filter the dataset to obtain a subset containing an equal number of values from each interval [0, 0.2), [0.2, 0.4), ... [0.8, 1.0), throwing away as little data as possible.
Calculate the sample size needed given these factors:
We are interested in exploring the relationship between the weight of a vehicle and its fuel efficiency (gasoline mileage).
A survey of a represenative group of students yields the following information: 78 percent are male or are active in intramural sports (or both).
Determine the upper-tail critical value of the test statistic using the values given in the problem statement for parts (a) through (e)
Discuss the need for quantitative research in the healthcare service field. Provide an example of a researchable question
Find the mean, variance, and standard deviation of the number of parents who identify their child's illness correctly.- Find the probability that at least 42 parents are correct.
From an urn containing balls, a ball was drawn, weighted and replaced. This experiment was repeated 5 times. what is the standard error of sample mean?
Weights in kilograms of boys at the start of 1st grade are approximately normal with mean 25, standard deviation 5. Based on the z-score for each
Stores A, B, and C, have 50, 75, and 100 employees and respectively 50%, 60%, and 70% if these employees are women. Resignations are equally likely among all employees regardless of sex. One employee resigns and she is a woman. What is the probabi..
Standard deviation can be assumed known with Q=.28 What is the 95% confidence interval estimate of the mean undergraduate GPA for students admitted to the top graduate schools?
Test-retest reliability coefficients (Pearson Product-Moment Correlations) were calculated based on sample retesting of 50-75 students in Grades K, 1, 3, 5, 8, and 12. The resultant reliability coefficients ranged from (.42) in kindergarten for Sp..
find the probability density function for the t-distribution with 1 degree of freedom. hint in math 380 you calculated
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