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A pair of dice is tossed once. Let X denote the sum of the face values, and let Y denote the absolute value of the difference between the face values.
a) FInd the joint probability mass function of X and Y
b) Find the conditional probability P(Y=1 I X=7)
Find the sample size required. A pilot study showed that the population standard deviation is estimated to be 0.09 g
What are some differences between discrete and continuous data? Is the measurement of money continuous or discrete? Explain. Can discrete data be analyzed using a normal distribution? Why or why not?
A group of teenagers were monitored closely over the period of several weeks to measure how frequently they watched violent television programs.
To test whether the population standard deviation differ significantly using Chi-Square test.
Assuming the nurses surveyed were a simple random sample from the population of all nurses in the United States, find the appropriate null hypothesis for these data
Calculate the mean, median and mode for both sets and do graph/histogram to chart the results and conclude if indeed one set of year had more the other as far a snowfall.
Method of assigning probabilities based on historical data is known the?
Develop a joint probability table for these data. If a student goes full time, determine the probability that school quality is first reason for selecting a school?
Calculate separate confidence intervals for the numbers of days absent for Clinic A and Clinic B, respectively.
what is the probability that the sample mean of IQ scores will not differ from the population mean by more than 2 points? (Round your answer to four decimal places.)
At the 0.05 level of significance, is there evidence of a difference in the mean waiting times in the four locations? State your null and alternative hypotheses. (Note: while the small sample size could justify use of the non- parametric Kruskal-W..
A random sample of 41 basketball players from The Official NBA Basketball Encyclopedia gave the sample standard deviation for player height as s=3.32 inches.
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