=+batch of batteries had manufacturing flaws, and has issued a recall. You have 10 batteries covered by the recall, and 3 are dead. You choose 2 batteries at random from your package of 10.

a) Has the assumption of independence been met? Explain.

b) Create a probability model for the number of good batteries chosen.

M06_SHAR8696_03_SE_C06.indd 232 14/07/14 7:26 AM Exercises 233