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A student has a 70% chance of passing an exam. What is the probability that the
A student has a 70% chance of passing an exam. What is the probability that the student fails the exam?
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Q1
A student has a 70% chance of passing an exam. What is the probability that the student fails the exam?
0.3
0.7
0.5
0.2
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The probability of failing the exam is 1 - 0.7 = 0.3.
Questions & Step-by-step Solutions
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Q
Q: A student has a 70% chance of passing an exam. What is the probability that the student fails the exam?
Solution:
The probability of failing the exam is 1 - 0.7 = 0.3.
Steps: 5
Show Steps
Step 1: Understand that the probability of passing the exam is given as 70%.
Step 2: Convert the percentage to a decimal. 70% is the same as 0.7.
Step 3: Realize that the total probability must equal 1 (or 100%).
Step 4: To find the probability of failing, subtract the probability of passing from 1: 1 - 0.7.
Step 5: Calculate the result: 1 - 0.7 = 0.3.
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