Answer:
Step-by-step explanation:
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The z-score is calculated by the formula (x - mu)/sigma, where x is the value, mu is the mean, and sigma is the standard deviation.
Answer:

Step-by-step explanation:
Since there are nine 2s being multiplied by each other, we can represent this as
.
Here is the work for that problem
On a horizontal number line, -6 is located to the (left) of -4. So, -6 is (less than) 4.