Solving Probability w/in 1 STD: Stats Problem Homework

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To calculate the probability that a value is within one standard deviation, first determine the z-scores for one standard deviation above and below the mean using the formula z = (x - m) / sigma. Once the z-scores are calculated, use the standard normal distribution table to find the probabilities associated with these z-scores. The probability of a value falling within one standard deviation can be found by subtracting the probability of the lower z-score from the probability of the upper z-score. This approach provides the required probability for values within one standard deviation of the mean. Understanding these calculations is essential for solving probability problems in statistics.
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Homework Statement


I am given a table of x and Probability of x an I have calculated the standard deviation and the variance.


Homework Equations





The Attempt at a Solution



from here how do I calculate the probability that a value is within one standard deviation
 
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rbailey5 said:

Homework Statement


I am given a table of x and Probability of x an I have calculated the standard deviation and the variance.


Homework Equations





The Attempt at a Solution



from here how do I calculate the probability that a value is within one standard deviation

calculate z=1 minus z= -1 (where z = (x-m)/sigma
 

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