# Proability of failure

Hello,

#### hlsmith

##### Not a robit
As for @GretaGarbo recommendation, make sure you check the linearity of the logit assumption in logistic regression.

#### Dason

What software are you using?

#### josh_psic

##### New Member
Hello,

Thanks a lot for your help. The logistic regression works well! @Dason, I used excel with "RegressIt" free add-in.

#### hlsmith

##### Not a robit
Glad to hear you had 'success'! This will generate predicted probabilities, which can be used to interpolate values of your continuous variable within the range included the sample.