help with datacamp. I keep getting 29 instead of 23.

L datacamp - Use the model, mdl_churn_vs_relationship , and the explanatory data, explanatory_data , to predict the probability of churning. Assign the predictions to the has_churned column of a data frame, prediction_data. Remember to set the prediction type. Q Take Hint (-15 XP) \( \quad \begin{array}{l}10 \\ 11 \text { \# See the result } \\ 12 \text { prediction_data }\end{array} \) Incorrect Submission The contents of the variable prediction_data aren't correct. It has 29 rows and 2 columns, while it should have 23 rows and 2 columns