Reaction Time for a Group of People Is Normally Distributed

question 5

Multiple Choice

Reaction time for a group of people is normally distributed, with a mean of 0.9 seconds and a standard deviation of 0.1 seconds. Find the probability that an individual selected at random has a reaction time less than 1 second. Round your answer to four decimal places. ​

• A)0.3413
• B)0.6587
• C)0.1587
• D)0.8413
• E)0.6826

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Definitions:

Scientific Theory

A well-substantiated explanation of some aspect of the natural world, based on a body of facts that have been repeatedly confirmed through observation and experiment.

Statistical Validation

The process of evaluating the correctness and reliability of a statistical model or measurement through rigorous testing and analysis.

Critical Thinking

The goal of critically examining and assessing a matter to come to a decision.

Unconditional Positive Regard

An attitude of total acceptance and support towards another person, irrespective of what they say or do.