In Exercises 5-20, find the range , variance, and standard deviation for the given sample data. Include appropriate units (such as “minutes”) in your results. (The same data were used in Section 3-2 where we found measures of center. Here we find measures of variation.) Then answer the given questions . 8. Tests of Child Booster Seats The National Highway Traffic Safety Administration conducted crash tests of child booster seats for cars. Listed below are results from those tests, with the measurements given in “hic," which is a measurement of a standard “head injury criterion.” According to the safety requirement, the hic measurement should be less than 1000 hic. Do the different child booster seats have much variation among their crash test measurements?
In Exercises 5-20, find the range , variance, and standard deviation for the given sample data. Include appropriate units (such as “minutes”) in your results. (The same data were used in Section 3-2 where we found measures of center. Here we find measures of variation.) Then answer the given questions . 8. Tests of Child Booster Seats The National Highway Traffic Safety Administration conducted crash tests of child booster seats for cars. Listed below are results from those tests, with the measurements given in “hic," which is a measurement of a standard “head injury criterion.” According to the safety requirement, the hic measurement should be less than 1000 hic. Do the different child booster seats have much variation among their crash test measurements?
Solution Summary: The author explains that different child booster seats have much variation among their crash test measurements. The largest value is more than twice the smallest value.
In Exercises 5-20, find therange, variance, and standard deviation for the given sample data. Include appropriate units (such as “minutes”) in your results. (The same data were used in Section 3-2 where we found measures of center. Here we find measures of variation.) Then answer the given questions.
8. Tests of Child Booster Seats The National Highway Traffic Safety Administration conducted crash tests of child booster seats for cars. Listed below are results from those tests, with the measurements given in “hic," which is a measurement of a standard “head injury criterion.” According to the safety requirement, the hic measurement should be less than 1000 hic. Do the different child booster seats have much variation among their crash test measurements?
Statistics that help describe, summarize, and present information extracted from data. Descriptive statistics include concepts related to measures of central tendency, measures of variability, measures of frequency, shape of distribution, and some data visualization techniques/tools such as pivot tables, charts, and graphs.
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