The Actual Value of a Variable for July Was 195

question 88

Multiple Choice

The actual value of a variable for July was 195.The researcher is using exponential smoothing with α = 0.30 and determines that the forecast value for August is 205.5.Then the forecast value for July was ______.

• A)200
• B)202
• C)205
• D)207
• E)210

---

Definitions:

Variability

The tendency of data points in a dataset to vary from each other and from the mean of the dataset.

Mode

The value that appears most frequently in a data set, representing the highest peak in a frequency distribution.

Standard Deviation

A statistical measure that quantifies the amount of variation or dispersion of a set of data values from the mean.

Negatively Skewed

A negatively skewed distribution is one where the tail on the left side of the probability density function is longer or fatter than the right side, indicating that the bulk of the values are skewed to the right.