What is the standard deviation of the length of energy bars produced at Eileen's Energy Bars?

3.5

3.25

0.75

0.25

3.5

3.25

0.75

0.25

3.5

3.25

0.75

0.25

**Answer:**

0.25

**Step-by-step explanaition:
**

The z-score represents how many deviations a value is from the mean. When the bar measures 3.25, the z-score is +1. When the bar measures 3.50, the z-score is +2. You'll notice that whenever the bar size increases by 0.25, the z-score goes up +1. So, the standard deviation from the mean must be 0.25.

**Answer:**

0.25

**Step-by-step explanation:**

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