Pregunta
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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Respuesta verificada por el tutor
Responder
The probability
is
.
Solución
We want to find
where
is the cumulative distribution function for the standard normal distribution.
- From the standard normal table, we have
- For
, the table gives - Therefore,
The probability, rounded to 4 decimal places, is
.
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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.
- The Z-table value for
is approximately 0.5120. - 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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