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Example Question #1 : Knowledge Of Probability, Statistics, And Data Interpretation
What is the likelihood, expressed as a percentage, of rolling 2 straight 2s using one 6-sided dice?
Possible Answers:
17%
3%
8.5%
5%
Correct answer:
3%
Explanation:
The likelihood of rolling any given number on a 6-sided dice is 16.6%, to get the likelihood of that even happening twice in a row, simply multiply 16.6% by itself, to get 2.7%, rounded up to 3%
Example Question #1 : Knowledge Of Probability, Statistics, And Data Interpretation
A set of ten scores has mean 30.
Nine of the scores are given below, with the circle representing the tenth.
What is the tenth score?
Possible Answers:
Correct answer:
Explanation:
The mean of a group of scores is equal to their sum divided by the number of scores , or,
Set and , and solve for :
Multiply both sides by 10 to reverse division by 10:
The sum of the scores must be 300. Add the known scores:
Subtract this sum from 300:
,
the missing tenth score.
Damion
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Saint Edward's University, Bachelors, Accounting. The University of Texas at Austin, Master of Science, Accounting.
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