In small-scale survey, you ask people how many times they have been abroad on holiday over the course of the past five years. You obtain the following responses from 12 people: 7, 0, 7, 7, 7, 0, 10,...

In small-scale survey, you ask people how many times they have been abroad on holiday over the course of the past five years. You obtain the following responses from 12 people: 7, 0, 7, 7, 7, 0, 10, 8, 5, 4, 0, 0. The mean of this data set is equal to 4.583 and the standard deviation is 3.679.

Find the z-score for the smallest measurement in the data set. (Provide your answer as a number, rounded to 2 decimal places.)