Statistics Checkpoint

1. The mean of [2, 4, 6, 8] is:

5 4 6 20

2. Variance measures:

Spread of data around the mean Central tendency Outliers only Sample size

3. Standard deviation is:

Square root of variance Square of variance Same as variance Half of variance

4. The median of [1, 3, 5, 7, 9] is:

5. A normal distribution is characterized by:

Mean and standard deviation Only mean Only variance Median and mode