GIAC Machine Learning Engineer
Domain 1Objective 3
Probability and Frequency GMLE Practice Questions (Page 2)
Part of the Foundational Data Science and Statistics domain, which makes up ~41% of our current practice bank. GIAC (SANS) does not publish an official question count, but from its 180-minute exam (~70–120 total, ~29–49 in this domain), expect 7–12 from this objective — we provide 46 practice questions to prepare you well beyond it. (estimate)
46questions here
10free pages
7concepts
Questions 6–10
- 6
What does the variance of a random variable measure?
Select an answer first - 7
If the variance of a random variable is 16, what is its standard deviation?
Select an answer first - 8
A call center models the number of calls per minute as a Poisson distribution with λ=3. What is the standard deviation of the number of calls per minute?
Select an answer first - 9
A data scientist is modeling the number of support tickets received per hour at a help desk. Based on 200 hours of historical data, the relative frequencies are: 0 tickets (0.10), 1 ticket (0.25), 2 tickets (0.35), 3 tickets (0.20), 4 tickets (0.10). What is the expected number of tickets per hour?
Select an answer first - 10
A gaming company models the number of daily active users (in thousands) with a uniform distribution from 10 to 20. What is the expected number of daily active users?
Select an answer first
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