Question
The mean weight of a class of 20 students is 52 kg. Two more students weighing 61kg and 57kg respectively join the class. What is the mean weight of the class now
Answers
GPT 3.5
First, we calculate the total weight of the original 20 students:
Total weight = 52 kg/student * 20 students = 1040 kg
Now, we add the weight of the two new students:
New total weight = 1040 kg + 61 kg + 57 kg = 1158 kg
Finally, we calculate the new mean weight:
Mean weight = Total weight / Total number of students
Mean weight = 1158 kg / 22 students
Mean weight ≈ 52.636 kg
Therefore, the mean weight of the class now is approximately 52.636 kg.
Total weight = 52 kg/student * 20 students = 1040 kg
Now, we add the weight of the two new students:
New total weight = 1040 kg + 61 kg + 57 kg = 1158 kg
Finally, we calculate the new mean weight:
Mean weight = Total weight / Total number of students
Mean weight = 1158 kg / 22 students
Mean weight ≈ 52.636 kg
Therefore, the mean weight of the class now is approximately 52.636 kg.