ind the mean of the following frequency distributions
Weight (kg) | 30 | 31 | 32 | 33 | 34
Number of students 8 10 15 8 9
Answers
Answer:
Mean = 32 kg.
Step-by-step explanation:
We are given with the following frequency distributions;
Weight in Kg (X) Number of students (f) f * X
30 8 240
31 10 310
32 15 480
33 8 264
34 9 306
∑f = 50 ∑f * X = 1600
Now, Mean formula is given by;
Mean = = = 32 .
Therefore, mean weight of students is 32 kg.