WGU Applied-Probability-and-Statistics Actual Free Exam Questions & Community Discussion
95% CI = 50 ± 2. SE = ?
Correct Answer: D
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A school surveyed student participation in extracurricular activities. The survey found:
* The drama club had 50% of students participate.
* The science club had 30% of students participate.
* Both clubs had 15% of students participate.
What is the probability that a student participated in the drama club, given that they attended the science club?
* The drama club had 50% of students participate.
* The science club had 30% of students participate.
* Both clubs had 15% of students participate.
What is the probability that a student participated in the drama club, given that they attended the science club?
Correct Answer: A
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Correlation coefficient = #0.7. This indicates:
Correct Answer: B
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A teacher compares the test scores of two classes using a box plot.
What is true about the median test scores?
What is true about the median test scores?
Correct Answer: B
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Determine z in the equation:
1/(6z) = 2/9
1/(6z) = 2/9
Correct Answer: C
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Dataset: 3, 5, 7, 9, 11. Median = ?
Correct Answer: C
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There are 12 cell phone charging cords available at a store for purchase. The length of each charging cord in inches is reflected as 3, 3, 4, 6, 6, 6, 6, 7, 10, 10, 11, and 12, respectively.
What are the mean of these data?
What are the mean of these data?
Correct Answer: B
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Probability of at least one six in 2 dice rolls = ?
Correct Answer: A
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Type II error # is:
Correct Answer: B
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Type I error # = 0.05 means:
Correct Answer: B
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Correlation coefficient r = #0.5 #
Correct Answer: B
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The pie chart shows the contribution of different renewable energy sources to the total energy production.
What is true about the given data?
What is true about the given data?
Correct Answer: D
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Probability of rolling 1, 2, or 3 on die = ?
Correct Answer: D
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