The probability of observing a random draw greater than or equal to 474 from a uniform distribution between 19 and 660 can be found by calculating the proportion of the range that lies above 474.
First, we need to find the total range of the distribution by subtracting the lower bound from the upper bound: 660 - 19 = 641.
Next, we need to determine the proportion of the range that lies above 474. To do this, we subtract 474 from the upper bound of the range: 660 - 474 = 186.
Finally, we divide the result by the total range:
.
Therefore, the probability of observing a random draw greater than or equal to 474 is approximately 0.290, or 29.0% when expressed as a percentage.