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A coin was flipped twenty times and landed heads fifteen times. Based upon this information, answer the following the question:
If the coin is balanced (fair) what is the probability of a head on the toss?
If the coin is not balanced (not fair), what is the probability of a head on the next toss?
If a fair coin is flipped three times what is the probability of getting the following outcomes?
- Zero Heads
- One or more heads
= One head followed by two tails
Does your analysis change if the term "average" refers to the mean? To the median? Explain what effect this misinformation might have on the perception of the nation's schools.
The diameters of oranges in a certain orchard are normally distributed with a mean of 5.26 inches and a standard deviation of 0.500 inches.
The reason why we finish our calculation by dividing range by 4 is that in most data sets 95% of the data values fall within two standard deviations of the mean.
The field of statistics can be roughly subdivided into two areas: descriptive statistics and probability.
When the conditionally and unconditionally expected values of a discrete random variable would be different?
For the following data set, indicate whether the shape of the distribution is normal, positively skewed, or negatively skewed. Provide evidence for your answer by calculating the mean, mode, and median.
Write the regression. Interpret the regression constant and regression coefficient. Forecast a value for monthly salary.
In this forum post provide your results also elucidate what they mean in context of your favorite channel. To find 95 percent confidence interval for given data.
Given the standardized normal distribution (with a mean of 0 and a standard deviation of 1, as in Table E.2), what is the probability that:
Find a 99% confidence interval estimate of the proportion of people who say that they voted.
Determine the minimum required sample size if you want to be 99% confident that the sample mean is within 2 units of the population mean given sigma = 7.8. Assume the population is normally distributed.
Compare the two forecasts computed in (a) and (b), using MAD. Which one should the dealer use for January of the next year?
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