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Twelfth Grade (Grade 12) Statistics and Probability Concepts Questions

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Grade 12 Combinations and Permutations
If 4! is equal to 4 x 3 x 2 x 1, then 9! is equal to which expression?
  1. 9 x 8 x 7 x 6 x 5 x 4
  2. 9 x 1
  3. 9 x 8 x 7 x 6 x 5 x 4 x 3 x 2 x 1
  4. 9 x 4
Grade 12 Represent and Determine Probability
Grade 12 Represent and Determine Probability
Grade 12 Collecting and Interpreting Data
Grade 12 Represent and Determine Probability
Grade 12 Represent and Determine Probability
Grade 12 Range, Median, Mean, and Mode
Grade 12 Statistics and Probability Concepts
Positive correlation is a relationship where
  1. the value of one variable increases as the value of the other variable increases.
  2. the value of one variable decreases as the value of the other variable decreases.
  3. both variables increase to 1.
  4. both variables are increasing at the same rate.
Grade 12 Statistics and Probability Concepts
The correlation coefficient is
  1. a number between -1 and 1, inclusive, that is used to judge whether the relationship between the variables is causal or not.
  2. a number between 0 and 1 that represents the ratio of change between variables.
  3. a number between -1 and 1, inclusive, that is used to judge how closely a line fits the data.
  4. a number between -1 and 1 that represents the functions of supply and demand.
Grade 12 Statistics and Probability Concepts
Grade 12 Collecting and Interpreting Data
Which of the following is an example of systematic sampling?
  1. In a large school district, all teachers from two buildings are interviewed to determine whether they believe the students have less homework to do now than in previous years.
  2. Every seventh customer entering a shopping mall is asked to select his/her favorite store.
  3. Nursing supervisors are selected using random numbers in order to determine average annual salaries.
  4. Mail carriers of a large city are divided into four groups according to gender and according to whether they walk or ride on their routes. Then 10 are selected from each group and interviewed to determine whether they have been bitten by a dog in the last year.
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