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dpiotti dpiotti
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6 years ago
A frequency polygon is a line graph of a cumulative frequency distribution.
 
  Indicate whether the statement is true or false

Q. 2

When considering area under the standard normal curve, decide whether the area to the left of z = -2.5 is
  bigger than, smaller than, or equal to the area to the right of z = 2.
 
  A) smaller than B) bigger than C) equal to

Q. 3

When calculating the mathematical expectation, amounts which represent losses are assigned _______ values.
 
  Fill in the blank(s) with correct word

Q. 4

Assume that P(C) = 0.5 and P(D) = 0.3. If C and D are independent, find P(Cand D).
 
  A) 0.3 B) 0.5 C) 0.15 D) 1.5

Q. 5

The means of many samples drawn from the same population usually do not fluctuate widely.
 
  Indicate whether the statement is true or false

Q. 6

If the difficulty level of books is ranked from 1 to 10, a set of data rankings of books falls into the category of
  _______
  data.
 
  Fill in the blank(s) with correct word

Q. 7

If we wish to compare the average PSAT scores of boys and girls taking Statistics at a high school, which would be the best way to gather these data?
 
  A) SRS
  B) census
  C) stratified sample
  D) observational study
  E) experiment

Q. 8

It is possible for the class boundaries of an interval to be the same as its class limits.
 
  Indicate whether the statement is true or false
Textbook 
Stats: Modeling the World

Stats: Modeling the World


Edition: 4th
Authors:
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pradippradip
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6 years ago
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