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Consider the experiment of throwing an ideal die three times(all outcomes are equally likely). Let X and M denote the mean and the median respectively, of the three scores obtained.
a) find E(X)
What is the probability of finding 1 or more children with chronic bronchitis in a population where the incidence rate of chronic bronchitis is 10% (like the one above?)
Using the original data, test at the 5% significance level that the population standard deviation of studying times is greater than 4 hours.
Confirm that these statements are accurate by finding the geometric mean rate of increase.
Consider the relationship between derived scores and the normal curve. In terms of the normal curve and how it relates to psychological testing and assessment.
mean is calculated for each sample, then the average distance between M and u would be:
The impact of campaign film on attitudes toward a political candidate was investigated. Prior to showing the film, the attitudes of 15 people toward the candidate were assessed using a political likability scale.
Deriving the regression equation, testing the model fit and obtains confidence interval for estimated values.
What is the possibility that for a arbitrarily selected customer the service time could exceed 3 minutes?
The password of 52 digit sequence is made. It consists of 0 and 1. How various different possibilities exist for networks password.
Suppose the random variable X is normally distributed with mean =50 and standard deviation =7 calculate P(X).
The caffeine content of 20 brands of regular coffee is shown below. 80 82 89 85 87 30 33 44 40 46 50 55 60 62 71 90 92 75 63 65. Thus, this job helps to construct a Frequency Distribution with a class interval of 10, starting with 30.
If we wanted to shorten the interval of the estimation of the true mean of Saturday sales to a width of $600 in total, what should the size of our sample be to achieve it?
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