Final answer:
The x-value that is 1.8 standard deviations to the left of the mean is 0.5.
Step-by-step explanation:
To determine the x-value that is 1.8 standard deviations to the left of the mean, we can use the formula:
x = mean - (standard deviation * z-score)
Given that x ~ N(4.9,2.4), we substitute the values into the formula:
x = 4.9 - (2.4 * 1.8) = 0.5
Therefore, the x-value that is 1.8 standard deviations to the left of the mean is 0.5.