A person selects a key at random from four keys to open a lock. Only one key
Question:
A person selects a key at random from four keys to open a lock. Only one key opens the lock. If the first key does not open the lock, she tries other keys until one opens the lock. Find the average of the number of keys a person will have to try to open the lock. Try the experiment 25 times.
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Step by Step Answer:
Step 1 List all possible outcomes of the experiment They are key 1 key 2 key 3 and key 4 Step ...View the full answer
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Shehar bano
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Related Book For 
Elementary Statistics A Step By Step Approach
ISBN: 9781260360653
11th Edition
Authors: Allan Bluman
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