Anna Lisa swam 45 yards underwater, and Marissa swam 35 yards underwater. A Anna Lisa swam 45 yards underwater, and Marissa swam 35 yards underwater. B Kim pulled weeds at the rate of twenty weeds per minute, and Jorge pulled 18 weeds per minute. C Neither D Both 7 Select the description that most completely classifies the given variable. Identify a misinterpreted word as a systematic or random error. A Systematic B Random 9 Identify the potential error in recording arrival times for interstate highway trips as random or systematic.
A Systematic B Random 10 The size of an e-mail file is stated as kB, but the file size is actually What is the absolute error? Which of the following experimentally determined values is the most precise? B more precise and more accurate. C not necessarily more precise or more accurate. D more precise, but not necessarily more accurate. What is the absolute increase, to the nearest percent?
What is the absolute increase from the younger group to the older group, to the nearest point? For problems 1 and 2, identify the variable as either quantitative or qualitative. A Quantitative 2 Outcome of tossing a coin. A Quantitative. A Continuous B Discrete 4 The total number of scam emails you receive in a month is 7. A Continuous B Discrete 5 Determine which of the four levels of measurement is most appropriate. Political party preference of survey respondents.
The fertilized grass grew 2. The single-stage model rocket went up ft; the two-stage model rocket went up ft. A The single-stage model rocket went up ft; the two-stage model rocket went up ft. B The fertilized grass grew 2. A Systematic B Random 9 A person is always late for class. A Systematic B Random 10 Rather than use the two scoops of coffee recommended by the manufacturer, a coffee aficionado uses three scoops of coffee per pot. Computer Science.
Electrical Engineering. Mechanical Engineering. Advanced Math. Advanced Physics. Anatomy and Physiology. Earth Science. Social Science. Political Science. Literature Guides. Popular Textbooks. Buy this textbook Buy launch. Statistical Reasoning for Everyday Life Jeff Bennett, William L. Briggs, Mario F. View More Textbook Editions. Section 1. Chapter Questions.
If they were systematic, there would be a tendency for the measurements all to be too high or all to be too low. They could also occur if all the students had been incorrectly taught how to use the tape measure.
If there is a systematic error in the measurements, that same error will be present in the mean average. The errors are random. If they were systematic, there would be a a tendency for the measurements to be all too high or to be all too low. If there is a systematic error in the measurements, that same error will be present in the average.
The Department of Transportation measurement is more precise because its weight of The The digital scale is more precise 0. This assumes that your actual weight is what you thought it was.
The given number is very precise, but it is not likely to be accurate. We cannot even measure the population this precisely today, and the uncertainties were much greater in Crash victims who died a considerable time after the crash are not included in the total. Some reporting errors are likely. Some deaths might have questionable causes, such as death due to a heart attack during a crash that resulted in no obvious personal injuries.
The given number is very precise, but it is not likely to be very accurate. There are many people in China who are not counted. Any national census is likely to be in error by a considerable amount due to the inherent difficulties in conducting such a census.
The population of China likely changed during the course of the year. It should be easy to accurately measure the height of a building with precision to the nearest foot, so the claim is believable, though it would be good to verify the source before quoting this number.
It is easy to accurately measure the height of a structure with a reasonable degree of precision, such as the nearest foot, but the given number has far too much precision it implies the height is known to a size smaller than an atom!
The given value is not very precise because it is rounded to the nearest 0. The given value is not likely to be very accurate, because so much of the illegal drug trade is conducted in secrecy. The age of 4. It would be misleading to conclude that the age of the earth is 4,,, years, because this result has high precision that is not justified by the original value of 4.
The original weight of kg is likely to be a rounded value that is not very precise. It would be misleading to conclude that the final weight of the whale is kg, because this result has high precision that is not justified by the original weight of kg. Absolute change is the actual increase or decrease from a reference value to a new value, while relative change is the size of the absolute change in comparison to the reference value. Examples will vary. Absolute difference is the actual difference between the compared and reference value, while relative difference is the size of the absolute difference in comparison to the reference value.
More than indicates a change from a reference value. Of indicates how a new value compares to a reference value as a ratio. The statement does not make sense. The statement does make sense. The actual number would be respondents. Since The relative change is There has been a The statement incorrectly implies that the error can be up to 1.
This means that the actual result could be up to 0. An index number provides a simple way to compare measurements made at different times or in different places. The value at one particular time or place must be chosen as the reference value or base value.
The index number for any other value is then calculated by dividing that value by the reference value and multiplying by The CPI is an index number computed from prices for a sample of more than 60, goods, services, and housing costs. Important: To use the test banks below, you must download the TestGen software from the TestGen website. If you need help getting started, read the tutorials on the TestGen site.
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Statistical Reasoning for Everyday Life, 5th Edition. If You're an Educator Download instructor resources Additional order info. A qualitative approach teaches students how to reason using statistics Understanding the core ideas behind statistics is crucial to everyday success in the modern world.
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