Joan's finishing time for the bolder boulder 10 km race was 1.77 standard deviations faster than the women in her age group. 3 The most passive method of data collection is observation. The most frequent observation in a data set is known as the mode. Write TRUE OR FALSE for each question: 1 Standard deviation measures central location.
If the data set contains 40 data values, approximately how many of the data values will fall within the range of 6.5 to 13.5?ĭecide by calculation how many candidates out of a total of 1000 candidates for the position of CEO meet the eligibility requirements for the desired performance of this top management position with at least 67% probability - provided, of course, that the The mean is 10, and the standard deviation is 3.5. Is there evidence to show that this group has A random sample of 50 students was given the same test and showed an average score of 83.20. How many tubes does have a length: a) between 16.5 cm and 18.1 cm b) greater than 17 cmĪ standardized test was administered to thousands of students with a mean score of 85 and a standard deviation of 8. The arithmetic mean is 17.27 cm and the standard deviation is 1.2 cm. The participants receiving the top 5% of the s Consider that the scores in the exam are normally distributed with a mean of 78 and a standard deviation of 7.5. In a college entrance exam, the participants are rated as excellent, very good, good, and fair. What is the value of x if it is z = +1.50? Suppose a distribution has a mean µ = 8 and standard deviation σ = 4. three claims in a given week, more than four claims in a given Assuming that a Poisson distribution can model the number of claims, find the probability it receives. An insurance company receives, on average, two claims per week from a particular factory.
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