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A biased coin lands heads with probability 2/3. The coin is tossed three times,
a) Given that there was at least one head in the three losses, what is the probability that there were at least two heads?
b) Use your answer in a) to find the probability that there was exactly one head given that there was at least one head in the three tosses.
explain in what sense that percentile ranks and standard scores are similar to one another? be sure to include an
What fraction of the company's product is good? What percentage is blemished? If an unit of product is selected at random and found to be blemished, what is the probability that it was produced on machine B?
jude is interested in buying a digital camera. he visited 9 stores at random and recorded the price of the particular
Comfy wonders whether the customers who receive larger discounts are buying more expensive items. Recalling that the value in the Tot Paid column.
1. A coin having probability p of coming up heads is continually ?ipped. Let Pj(n) denote the probability that a run of j successive heads occurs within the ?rst n ?ips.
What is the relationship between confidence intervals and hypothesis testing? How are they similar? How are they different? Which one is better?
Define and mention characteristics of normal probablity curve, Distinguish a group of 500 people into three groups assuming that the attribute of grouping is normally distributed.
a 90 confidence interval for the difference between the means of two independent populations with unknown population
Determine the point estimate? Give the symbol and value.
Analysis of variance has long been used in providing evidence of the effectiveness of pharmaceutical drugs. Such evidence is required before the Food and Drug.
Can the methods legitimately be used to compute a 95% confidence interval for the proportion of Americans who fit that description? Explain why or why not.
a network provider investigates the load of its network. the number of concurrent users is recorded at fifty locations
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