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Question: On October 5, 2007, a Marysville, Ohio, woman gave birth to her third child. The date of birth for this child was the same as for her two previous children. The Associated Press picked up the story and it was run in newspapers around the country as an amazing coincidence. If births dates are random and independent, a probabilist can show that the chance that three children share the same birth date is about 7.5 in a million. The rarity of the event is what made the story newsworthy.
Just how amazing is this event? In this chapter we will learn how to interpret probabilities like 7.5 in a million. By the end of this chapter you will be able to assess coincidences like having three children who share the same birth date. Are they as surprising as they seem?
Suppose that during the past year the following is Jim's distribution of home sales. If one assumes that this is a typical distribution for Jim's monthly sales, which salary plan should Jim select?
the average height of a random sample of 2000 women is 64 inches with a standard deviation of two inches.a what
Carefully read the material on Ethics and especially on Moral Theories in the Webtext. Then consider the following scenario:
Compute the time-average autocorrelation function. - Estimate the PSD of this process using the periodogram method.
a christmas string contains 15 lights 6 are damage you have to replace them with 6 new lights but dont know which are
for women age 25-34 with full-time jobs the average income in 2004 was 32000 and the sd for income was 26000. assuming
1.crop researchers plant 100 plots with a new variety of corn. the average yield for these plots is x 130 bushels per
Generate a test question and model your answer to that for critical areas of learning.
What is the probability that the percentage in the sample will deviate from the population percentage by no more than 7 percentage points?
Model Fitness. With any statistical model, we assess the fit: Does the model accurately depict the truth? Explain how one of the following helps assess the "fitness" of the mean.
The mean salary for engineers with less than 5 years' experience is $60,000 with a standard deviation of $5,000. Compute the z values for both 1)Rob and 2)Rachel.
For the system described in Problem P10.13, the goal is to achieve a phase margin of 50° with the additional requirement that the time to settle (to within 2% of the final value) be less than 4 seconds. Design a lead network to meet the specifica..
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