Contact Style About

The mean weight of 150 student is 60 kg . The mean weight of boys is 70 kg. With SD of 10 kg. For the girls mean weight is 55 kg w

By Katherine

The mean weight of 150 student is 60 kg . The mean weight of boys is 70 kg. With SD of 10 kg. For the girls mean weight is 55 kg with SD of 15 kg . Find the number of boys and SD of combined group.

About the author
Katherine

2. In A ABC, <B = 90°, AB= 13cm, AC= 21cm
BC=——–​

2. Who am I?
I am a 7-digit number.
A = F = successor of sum of digits of 12 + 9
?
B = G = predecessor of 8 –

1 thought on “The mean weight of 150 student is 60 kg . The mean weight of boys is 70 kg. With SD of 10 kg. For the girls mean weight is 55 kg w”

Leave a Comment