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Expected value and variance using Binomial distribution: Twenty three percent of automobiles are not covered by insurance. On a particular weekend, 35 automobiles are involved in accidents
a. what is expected number of these automobiles that are not covered by insurance
b. what is the variance and standard deviation?
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?)
Determine the value of correlation coefficient between these 2 variables?
Calculate the expected number of days it takes to get the order and standard deviation.
Here are fifty observations on the weight of tea bags. Calculate the Standard Deviation and Variance.
A sample of n observations is taken from a population. When performing statistical inference about a population variance, the appropriate chi-square distribution has:
Estimate the values using multiple regression models. An air conditioning as well as heating repair firm conducted a study to determine if the outside temperature, Illustrate the forecasted monthly electric bill.
If two independent large samples are taken from two populations, the sampling distribution of the difference between the two sample means:
Calculate a 3-month moving average forecast for months 4 through 9 also Compare the two forecasts by utilizing MAD. Which forecast appears to be more accurate.
Explain can you find out statistical support in this poll for that statement. When it comes to the war in Iraq, among which of the subsiquent statements comes closer to your point of view.
Use frequency distribution to create a probability distribution, determine the (b) mean,(c) variance and (d) standard deviation of probability distribution and (e) interpret results in context of real life situation.
What sample size and acceptable level would result in a probability of .05 that a good batch will be rejected and a probability of .10 that a bad batch will be accepted?
Does the normal distribution yield a good approximation of the actual results?
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