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Id the probability using the normal distribution: . Use 3 The standard Normal Distribution Table and enter the answer to 4 decimal places.

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Answer

The probability is .

Solution

We want to find
where is the cumulative distribution function for the standard normal distribution.
  1. From the standard normal table, we have
  2. For , the table gives
  3. Therefore,
The probability, rounded to 4 decimal places, is .

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Simplify this solution

Mind Expander

To find the probability using the standard normal distribution, we can look at the standard normal distribution table (Z-table) for the values corresponding to z-scores.
  1. The Z-table value for is approximately 0.5120.
  2. The Z-table value for (which corresponds to the mean) is 0.5000.
Now calculate the probability:
Thus, the probability is 0.0120, or 0.0120 when rounded to four decimal places.

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