Suppose the wait times at Kroger are 5 minutes with a standard deviation of 2 minutes.

- Draw a number line and mark the mean at 5 minutes and mark 1, 2, and 3 standard deviations above and below the mean. Label the unusual data value range(s) on the number line.
- Rosa waits 3 minutes at Kroger. How many standard deviations from the mean is her wait time?
- Binh waits 11 minutes at Kroger. How many standard deviations from the mean is his wait time?
- Is either wait time unusual at Kroger?