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- How do you find the negative Z value in a table?
- Is negative z-score the same as positive?
- How do you find positive and negative z-scores?
- How do you find the area of a negative z-score?
How do you find the negative Z value in a table?
If you have a negative z-score simply use the same table but disregard the negative sign, then subtract the area from the table from 1.
Is negative z-score the same as positive?
Z scores are standardized scores that compare the distance between the data point and the mean with the standard deviation. A negative z score indicates measurement is smaller than the mean while a positive z score says that the measurement is larger than the mean.
How do you find positive and negative z-scores?
Given any data value, we can identify how far that data value is away from the mean, simply by doing a subtraction x – μ. This value will be positive if your data value lies above (to the right) of the mean, and negative if it lies below (to the left) of the mean.
How do you find the area of a negative z-score?
By the symmetry of the bell curve, finding the area to the left of a negative z-score is equivalent to the area to the right of the corresponding positive z-score. For example, the area to the left of z = -1.02 is the same as the area to the right of z = 1.02.
