Compute half-life of the radioactive substance
The scientist starts with 20 grams of the radioactive substance. After seven days, sample has decayed to 17 grams. Compute half-life of the substance.
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In 1994, the General Social Survey had the question that asked its participants (that currently smoked) if they had ever tried to quit smoking. Out of 142, 117 said yes, they had tried to quit smoking. Determine the value of the test statistic for
The half-life of Erbium-165 is 10.4 hours. After 24 hours the sample still contains 2 mg. Find initial mass of sample, and how much will remain after another three days?
Find out the indicated probabilities using geometric distribution or Poisson distribution. The determine if the events are unusual. If convenient employ a Poisson probability table or technology to the probabilities.
Ignoring all other partial losses, what premium must the insurance company charge for the yearly policy in order to break even on all %85,000 policies in this area?
In 1994, the General Social Survey had question that asked its participants (that currently smoked) if they had ever tried to quit smoking. Out of 142, 117 said yes, they had tried to quit smoking. Determine the value of the test statistic for thi
The pilot study was initiated because of the costs involved in sampling. Each sampled observation costs approximately $10 to obtain. Originally, it was thought that the population's standard deviation may be as large as 300. Determine the amount o
The bridge is built in shape of the semielliptical arch. It has the span of 96 feet. Height of arch 29 feet from center is to be 9 feet. Determine height of arch at its center.
A newspaper finds out that the mean number of errors per page is eight. Find out the probability that (a) exactly four typographical errors are found on the page, (b) at most four typographical errors are found per page, (c) more than four typogra
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Question 1: How would you define Altruism? Question 2: Summarize the important concepts presented in your reading.
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