2. The average American walks 4,500 steps per day with a standard deviation of 900 steps. If this distribution follows a normal distribution, (a) What is the probability that someone walks between 6,000 and 9,000 steps per day? (b) What is the probability that someone walks more than 5,000 steps? (c) What is the probability that someone walks within one standard deviation of the mean?

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I need help with a-c please.
2. The average American walks 4,500 steps per day with a standard deviation of 900 steps. If
this distribution follows a normal distribution,
(a) What is the probability that someone walks between 6,000 and 9,000 steps per day?
(b) What is the probability that someone walks more than 5,000 steps?
(c) What is the probability that someone walks within one standard deviation of the
mean?
Transcribed Image Text:2. The average American walks 4,500 steps per day with a standard deviation of 900 steps. If this distribution follows a normal distribution, (a) What is the probability that someone walks between 6,000 and 9,000 steps per day? (b) What is the probability that someone walks more than 5,000 steps? (c) What is the probability that someone walks within one standard deviation of the mean?
Expert Solution
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GIVEN DATA normal distributionμ = 4500σ = 900

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