14‚ 15‚ 15‚ 16. The mean is 14.0mm.What is the best estimate of the standard deviation? -1mm 5 1000 bananas were collected from a single plantation and weighed.Their masses formed a normal distribution. How many bananas would be expected to be within 2 standard deviations of the mean? -950 6 In a normal distribution‚ what percentage of values fall within ±1 standard deviation of the mean and ±2 standard deviations of the mean? -1= 68% -2=95% 7 The lengths of the leaves of dandelion plants
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13. Variance and Standard Deviation (expected). Using the data from problem 13‚ calculate the variance and standard deviation of the three investments‚ stock‚ corporate bond‚ and government bond. If the estimates for both the probabilities of the economy and the returns in each state of the economy are correct‚ which investment would you choose considering both risk and return? Why? ANSWER Variance of Stock = 0.10 x (0.25 – 0.033)2 + 0.15 x (0.12 – 0.033)2 + 0.50 x (0.04 – 0.033)2 + 0
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tar per cigarette and a standard deviation equal to 1.0 milligram. Suppose a sample of 100 low-tar cigarettes is randomly selected from a day’s production and the tar content is measured in each. Assuming that the tobacco company’s claim is true‚ what is the probability that the mean tar content of the sample is greater than 4.15 milligrams? [0.00621] 2. The safety limit of a crane is known to be 32 tons. The mean weight and the standard deviation of a large number of iron rods are
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precision can be made using the results. Precision refers to how close a set of results are to each other. In this lab‚ the percent relative average deviation can be used as an indicator of preciseness. Percent relative average deviation is a measure of how tightly clustered a set of data points is around a mean. A low percent relative average deviation indicates that the data points are tightly clustered around the mean; moreover‚ if the
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there is a remedy’ ubi jus ibi remedium; which provides the fundamental concept that the complainant who has a grievance cognizable by the law may be assured of a remedy through the courts. Ubi jus ibi remedium has been a fundamental concept of our legal system‚ and the complainant who has a grievance cognizable by the law may be assured of a remedy through the courts. The work of the constitutional mandate is that courts must grant ‘appropriate relief’ or ‘appropriate and just’ remedy where there
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States Air Force utilizes the Remedy system to automate Service Management functions for its cyber enterprise networks. Remedy provides the various system users multiple features to streamline and optimize their respective Service Management functions. Without careful planning there are some problems Remedy can create; however‚ when utilized properly the system provides users with a powerful Service Management tool. Identifying the users who interface with Remedy is the first step to understanding
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decreases by -0.347 average number of hours per week. Next‚ we have to interpret the random error component ( ) of the least squares line. The estimate of error standard deviation for this particular data set is 12.28455 which suggests that the work-life balance score (y) values should be two times of the standard deviation. This can be best expressed as in the equation of 2s = 2(12.28455) which equals 24.57 average hours per week. Then‚ we can analyze the accuracy of hypothesis model to see
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Ist Submission Artifact Benchmark 2 : Course EDUC 3123 Child and Adolescent Psychology Semester /Year Spring 2014 Reflective Commentary : This artifact pertains to the relationship between human/child cognitive development intertwined with their individual level of human functioning and education. With the aid of the brilliant intellectual minds of cognitive/educational theorists: Jean Piaget‚ Erik Erikson and Lev Vygotsky observations‚ beliefs‚ functions‚ expectations
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Abnormality is diagnosed by three different symptoms. The first definition is behaviour that deviates from social norms. The common question would be‚ what are social norms? Social norms are something that is socially acceptable in a certain society. So‚ the first diagnosis of someone who is abnormal and falls under the classification of deviation from social norms‚ could be categorised as abnormal in one society‚ but socially accepted and normal in another society (Cardwell et al‚ 2008: p.216).
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obtain the highest overall reliability? 17. A major television manufacturer has determined that its 19-inch color TV picture tubes have a mean service life that can be modeled by a normal distribution with a mean of six years and a standard deviation of one-half year. a. What probability can you assign to service lives of at least (1) Five years? (2) Six years? (3) Seven and one-half years? b. If the manufacturer offers service contracts of four years on these picture tubes‚ what percentage
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