Find standard deviation for expected number of good battery


In a group of 15 batteries, 6 are dead. You chose 2 at random. The expected number of good batteries is 1.2. What is the standard deviation?

Solution Preview :

Prepared by a verified Expert
Basic Statistics: Find standard deviation for expected number of good battery
Reference No:- TGS0681824

Now Priced at $5 (50% Discount)

Recommended (92%)

Rated (4.4/5)