Question
A market researcher analyzes how many electronics devices customers buy in a single purchase. The distribution has a mean of three with a standard deviation
A market researcher analyzes how many electronics devices customers buy in a single purchase. The distribution has a mean of three with a standard deviation of 0.7. She samples 400 customers.
A. What is the z-score for Ex=840?
B. What is P(Ex<1,186)?
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Precalculus A Right Triangle Approach
Authors: Jogindar Ratti, Marcus S McWaters
2nd Edition
0321899814, 9780321899811
