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Question 1
A dataset of 120 student test scores has a mean of 68 and a standard deviation of 8. Assuming a normal distribution, approximately how many students scored between 60 and 76?
Correct Answer:
82 students
Question 2
For a set of data, the five-number summary is given by: Minimum = 12, Q1 = 25, Median = 34, Q3 = 42, Maximum = 75. Which value represents the upper fence threshold for identifying upper outliers?
Correct Answer:
67.5
Question 3
A linear regression equation modeling annual salary (S, in thousands of dollars) based on years of experience (t) is given by S = 45 + 3.2 t. What is the predicted annual salary for a worker with 8 years of experience?
Correct Answer:
$$70,600
Question 4
If Pearson's correlation coefficient between two variables x and y is r = -0.84, what proportion of the total variation in y can be explained by the linear relationship with x?
Correct Answer:
70.56%
Question 5
The actual sales figure for a retail shop in Quarter 3 was $144,000, and the seasonal index for Quarter 3 is 1.20. What is the deseasonalised sales value for Quarter 3?
Correct Answer:
$$120,000
Question 1
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About this Exam

Prepare with the VCE General Mathematics Practice Questions - VCE General Mathematics External Assessment Exam practice quiz. This question bank includes 100 questions covering monthly, value, rate, mean, and regression. Use it to review important concepts, identify knowledge gaps, and build confidence for the related exam, course, or assessment.

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VCE General Mathematics Practice Questions - VCE General Mathematics External Assessment Exam

This practice set contains 100 questions from the matching question bank and focuses on monthly, value, rate, mean, and regression. Work through each question carefully, review the provided solutions, and revisit topics that need more study before your next attempt.

This is an independent study resource intended for practice and review; it is not an official examination or an endorsement by any organization named in the title.

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