How can i find average(mean) from correct rate(accuracy) from different number of K-fold?For example there are 3 k-fold and each number of k-fold has their accuracy. I need to find average of this accuracy.

Sen=[cp.Sensitivity cp.Sensitivity cp.Sensitivity] Mean=mean(Sen) Spe=[cp.Specificity cp.Specificity cp.Sensitivity] Mean=mean(Spe) Acc=[cp.CorrectRate cp.CorrectRate cp.CorrectRate] Mean=mean(Acc)