When the sample sizes are equal, the pooled variance of the two ...

[charchew]

When the sample sizes are equal, the pooled variance of the two samples is the ___________________ _ of the two sample variances.
 Fill in the blank(s) with correct word

Question 2

The time series component that reflects the irregular changes in a time series that are not caused by any other component, and tends to hide the existence of the other more predictable components, is called random variation.
  Indicate whether the statement is true or false

[kmb352]

Answer to Question 1

average

Answer to Question 2

T

[charchew]

Correct answers!

[kmb352]

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