IB Mathematics SL Prep - Question List

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56. What is the mean for the following expenditures? $79.84, $278.99, $342.16, $466.25, $111.39, $502.47, $98.12
  1. $278.99
  2. $268.46
  3. $354.22
  4. $317.54
57. Kathleen projects her expenditures for purchasing office supplies to be $85/week. How much will she spend on office supplies over a 4-week time span?
  1. $290
  2. $325
  3. $340
  4. $355
  5. $342
58. A company just distributed candy bars wrapped with golden tickets hidden within ordinary shipments of their product. The company spokesperson announces that there is a “one in one thousand chance” of someone finding a golden ticket when they open a candy bar, and that 500,000 candy bars have been distributed in the golden ticket promotion. If a person buys three of the candy bars, what is their chance of finding a golden ticket?
  1. 0.30%
  2. 3%
  3. 0.00%
  4. 0.03%
59. What part of a poll or survey is considered the 'sample'?
  1. The sum total of responses collected through the poll or survey
  2. The group of people participating in the survey or poll who represent a larger population
  3. The larger population the poll or survey is attempting to understand
  4. The questions the participants are asked
60. 3/5 of workers at a company have enrolled in the 403(b) program. If 24 workers have enrolled in the program, how many workers are employed at this company?
  1. 36 workers
  2. 40 workers
  3. 42 workers
  4. 44 workers
  5. 45 workers

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