the mean weight of a class of 20 students is 48 kg 2more students weighing 60 kg and 58 kg respectively . What is the mean weight of the class ?
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Photosynthesis is a process used by plants and other organisms to convert light energy into chemical energy that, through cellular respiration, can later be released to fuel the organism's metabolic activities.
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Answer: 49 kg
Step-by-step explanation:
Mean Weight=48 out of 20 students
Therefore total weight = 20*48 = 960
Add two students weighing 60, 58 to 960 = 960+60+58 = 1078
Therefore, Mean = 1078/22 students
= 49Kg
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