Test your basic knowledge |

CLEP General Mathematics: Percentage And Measurement

Subjects : clep, math, measurement
Instructions:
  • Answer 50 questions in 15 minutes.
  • If you are not ready to take this test, you can study here.
  • Match each statement with the correct term.
  • Don't refresh. All questions and answers are randomly picked and ordered every time you load a test.

This is a study tool. The 3 wrong answers for each question are randomly chosen from answers to other questions. So, you might find at times the answers obvious, but you will see it re-enforces your understanding as you take the test each time.
1. It is possible to round off a repeating decimal at any desired point - the degree of precision desired should be determined and:






2. In a number such as 49.30 inches - it is reasonable to assume that the 0 in the hundredths place would not have been recorded at all if it were not a






3. The probable error in any measurement is how precisely the instrument is marked - The precision of a measurement depends upon






4. May be considered as special types of decimals (for example - 4 may be written as 4.00) and thus may be expressed interms of percentage.






5. The base corresponds to the multiplicand - the rate corresponds to the multiplier - and the percentage corresponds to the product...We then divide the product (percentage) by the multiplicand (base) to get the other factor (rate).






6. Percentage divided by base






7. How many hundredths we have - and therefore it indicates 'how many percent' we have.






8. To add or subtract numbers of different orders






9. There are three cases that usually arise in dealing with percentage - as follows:






10. To find the percentage of a number - multiply the base by the rate. The rate must be changed from a percent to a decimal before multiplying can be done.






11. Is the part of the base determined by the rate.






12. Form the basis for the rules which govern calculation with approximate numbers (numbers resulting from measurement).






13. To find the rate when the percentage and base are known






14. Is the number of hundredths parts taken. This is the number followed by the percent sign.






15. In order to multiply or divide two approximate numbers having an equal number of significant digits






16. Relative error is the ratio between the _________________. This ratio is simply the fraction formed by using the probable error as the numerator and the measurement itself as the denominator.






17. Closely associated with the study of decimals is a measuring instrument known as a micrometer.






18. A rule that is often used states that the significant digits in a number






19. To to find the percentage of a number when the base and rate are known.






20. Since hundredths were used so frequently - the decimal point was dropped and the symbol % was placed after the number and read

Warning: Invalid argument supplied for foreach() in /var/www/html/basicversity.com/show_quiz.php on line 183


21. Deals with the group of decimal fractions whose denominators are 100-that is fractions of two decimal places.






22. Depends upon the relative size of the probable error when compared with the quantity being measured.






23. The 'of' has the same meaning as it does in fractional examples - such as 1/4 of 16 = ?






24. It is important to realize that precision refers to






25. One-thousandth of an inch. One-thousandth of an inch is about the thickness of a human hair or a thin sheet of paper.






26. The precision of a sum is no greater than






27. The word 'percent' is derived from Latin. It was originally 'per centum -' which means 'by the hundred.' Thus the statement is often made that 'percent' means






28. The accuracy of a measurement is determined by the ________






29. The accuracy of a measurement is often described in terms of the number of






30. FRACTIONAL PERCENTS.-A fractional percent represents a part of 1 percent.






31. Is the whole on which the rate operates.






32. Experience has shown that the best the average person can do with consistency is to decide whether a measurement is more or less than halfway between marks. The correct way to state this fact mathematically is to say that a measurement made with an i






33. Percent is used in discussing






34. To change a decimal to percent multiply the decimal by 100 and annex the percent sign (%). Since multiplying by 100 has the effect of moving the decimal point two places to the right - the rule is sometimes stated as follows:






35. How much to round off must be decided in terms of






36. The extra digit protects the answer from






37. The maximum probable error is found when the denominator of the fraction expressing the error ratio is divided into the numerator or






38. Before adding or subtracting approximate numbers - they should be






39. When a common fraction is used in recording the results of measurement






40. After performing the' multiplication or division






41. Relative error is usually expressed as






42. Has no bearing on the accuracy of the number. For example - 1.25 dollars represents exactly the same amount of money as 125 cents. These are equally accurate ways of representing the same quantity - despite the fact that the decimal point is placed d






43. 0.01 X 840 = 8.40 Therefore - 1/4% of 840 = 8.40 x 1/4 = 2.10






44. A larger number of decimal places means a smaller






45. The precision of a number resulting from measurement depends upon






46. Common fractions are changed to percent by flrst expressmg them as






47. Can never be more precise than the least precise number in the calculation.






48. The more precise numbers are all rounded to the precision of the






49. To flnd the bue when the rate and percentage are known






50. Drop the percent sign and divide the number by 100. Mechanically - the decimal point is simply shifted two places to the left and the percent sign is dropped.