1. ............ is the action of estimating or concluding something by assuming that existing trends will continue or a current method will remain applicable.

Extrapolation

Extrabolation

Extrapolasion

Extrepolation

2. ............ is a synonym of extrapolation.

Depression

Reduction

Inapprehensible

Conclude

3. Much of this is based on speculative ............

extrabolation

extrapolation

extrapolasion

none

4. ............ was used to define reference values in children above 8.

Linear extrabolation

Liner extrapolation

Linear extrapolation

Linear extrapolasion