Dear!
In my best knowledge,your ans is b.
Lets change "16" by its to 16/1 .. since nothing can't help support 16 by itself when it is going into 7/10
Now that we change that ... your problem becomes 7/10 × 16/1
7/10 × 16/1 = 11 1/5
Because
7(16) / 10(1) = 112/10
Now lets go. to how we solve the for the answer
112/10 = 11 1/5
☺
The standard deviation of the set is 5.2
To find standard deviation, we take the square root of the variance.
5 and 7… 5x7=35
you’re welcome
