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Sum of shaded area is equal to one. Smoothed histogram or density curve. How we view the "distribution" of a dataset can depend on how much data we have and how it is binned. Is the relationship linear or non-linear?
If the player does not win or lose on his second roll he continues to roll, using the same criteria given for the second roll.
How should the candidate purchase the five commercials to maximize the estimated number of additional voters?
When we take the sample of 100 of these average is $500 and SD is $100. (a) Determine statement to make about range $300 to $700?
A customer wants delivery to be ensured between 10 am and 2 pm. Your truck leaves the factory at 4 am and time taken to reach the customer is normally distributed with an average of 8 hrs and a standard deviation of 1 hr.
Find the probability that the mean weight of those loads is less than 42.00 tons. Assume that the variable is normally distributed.
For the following cases, determine whether the sampling is dependent or independent. Explain your conclusion.
Jim and Mike go to a coffee shop during their lunch break and toss a coin to see who will pay. The probability that Mike will pay three days in a row is 0.125.
Create one table that calculates summary measures of the change in test scores and income variables across all 80 schools.
At the 0.01 level of significance, that the mean lifetime of light bulbs made by this manufacturer differs from 49 months? Perform a two-tailed test.
It is a striking fact that the first digits of numbers in legitimate records often follow a distribution known as Benford's Law, shown below.
1st a confidence interval is constructed without utilizing the finite population correction factor.
If you want to be 95% confident of estimating the population proportion to within a sample error of +and - .05 and there is historical evidence that the population is approximately .35, what sample size is needed.
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