The following data shows the number of pets for 30 students in a math class:
Pets: 0, 1, 2,3,4,5,6
Frequency:3,13,6,4,3,0,1
What is the standard deviation, to the nearest tenth?

I'm not sure how to solve for this. Thank you!

Question

The following data shows the number of pets for 30 students in a math class:
Pets:         0, 1, 2,3,4,5,6
Frequency:3,13,6,4,3,0,1
What is the standard deviation, to the nearest tenth?

I'm not sure how to solve for this. Thank you!

anonymous · Answer

First find the mean of the data, $$\frac{ 3*0+1*13+2*6+3*4+4*3+5*0+6*1 }{ 30 }$$