Z Score Probability Calculator

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z score probability calculator is a tool used to find the z – score. If we have x, mean and standard deviation, we can find the value of z-score by the formula that is z – score 

              =  X- MEANS
      ...............................................           There are no units for z – score. 
        STANDARD DEVIATION



Example 1: Find the z-score for x = 10, mean = 50 and standard deviation = 10

Solution 1:  Steps for solving Z score probability   are :-

Step 1: From the problem we can write 





Here , Z-score probability is -4



 
Example2: Find the z-score for x = -1.37, mean = 100 and standard deviation = 20

Solution 2:  Steps for solving   z- score  are as follow :-

Step 1: From the problem we can write 



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