1.a.The respiratory system can be a limiting factor in maximal exercise performance. Researchers studied the effect of two breathing frequencies on both performance times and several physiological parameters in swimming. Subjects were 10 male collegiate swimmers. Here are their times in seconds to swim 200 meters at 90% of race pace when breathing every second stroke in front crawl swimming. 151.8 165.5 159.6 163.5 175.6 173.2 178.4 174.3 164.3 171.8 Calculate the standard deviation of the 10 swim times. (Round your answer to one decimal place.) ? seconds b.The respiratory system can be a limiting factor in maximal exercise performance. Researchers studied the effect of two breathing frequencies on both performance times and several physiological parameters in swimming. Subjects were 10 male collegiate swimmers. Here are their times in seconds to swim 200 meters at 90% of race pace when breathing every second stroke in front crawl swimming. 151.2 165.9 159.3 163.4 174.6 173.3 177.2 174.3 164.5 171.3 The five-number summary of the given data is which of the following? 151.2, 159.3, 168.6, 174.3, 177.2 151.2, 163.4, 167.5, 174.3, 177.2 151.2, 163.4, 168.6, 174.3, 177.2
Continuous Probability Distributions
Probability distributions are of two types, which are continuous probability distributions and discrete probability distributions. A continuous probability distribution contains an infinite number of values. For example, if time is infinite: you could count from 0 to a trillion seconds, billion seconds, so on indefinitely. A discrete probability distribution consists of only a countable set of possible values.
Normal Distribution
Suppose we had to design a bathroom weighing scale, how would we decide what should be the range of the weighing machine? Would we take the highest recorded human weight in history and use that as the upper limit for our weighing scale? This may not be a great idea as the sensitivity of the scale would get reduced if the range is too large. At the same time, if we keep the upper limit too low, it may not be usable for a large percentage of the population!
1.a.The respiratory system can be a limiting factor in maximal exercise performance. Researchers studied the effect of two breathing frequencies on both performance times and several physiological parameters in swimming. Subjects were 10 male collegiate swimmers. Here are their times in seconds to swim 200 meters at 90% of race pace when breathing every second stroke in front crawl swimming.
| 151.8 | 165.5 | 159.6 | 163.5 | 175.6 |
| 173.2 | 178.4 | 174.3 | 164.3 | 171.8 |
Calculate the standard deviation of the 10 swim times. (Round your answer to one decimal place.)
? seconds
b.The respiratory system can be a limiting factor in maximal exercise performance. Researchers studied the effect of two breathing frequencies on both performance times and several physiological parameters in swimming. Subjects were 10 male collegiate swimmers. Here are their times in seconds to swim 200 meters at 90% of race pace when breathing every second stroke in front crawl swimming.
| 151.2 | 165.9 | 159.3 | 163.4 | 174.6 |
| 173.3 | 177.2 | 174.3 | 164.5 | 171.3 |
The five-number summary of the given data is which of the following?
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