2005, Form B, Question 2 · 4 points
Concert ticket purchases as random variables
Find the mean and standard deviation of how many child tickets are bought, then of the total tickets and of the total amount spent when child and adult purchases are independent.
This exam had six free-response questions, each scored from 0 to 4. Its Question 6, the Investigative Task, is no longer part of the exam. The current exam has 4 free-response questions in 90 minutes. The skills these questions practice still count.
Not in the current course. Parts (b) and (c) ask for the mean and standard deviation of a sum and a linear combination of random variables, which the current course no longer includes.
Lessons this question draws on
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