Add acc_std_err

src/deepeval/utils.py

@@ -0,0 +1,17 @@
+import math
+
+def accuracy_standard_error(accuracy: float, n: int) -> float:
+    """
+    :param accuracy: accuracy of the model
+    :param n: number of samples
+    :return: standard deviation of accuracy of the model
+    """
+    return math.sqrt((accuracy * (1 - accuracy)) / n)
+
+def accuracy(n_correct: int, n_total: int) -> float:
+    """
+    :param n_correct: number of correct predictions
+    :param n_total: number of total predictions
+    :return: accuracy of the model
+    """
+    return n_correct / n_total