Countdown: Days:-o Time:-14:59:49 The following histogram displays the distribution of battery life (in hours) for a certain battery Select one answer. model used in cell phones: 10 points Relative Frequency 0.35 0.3 0.25 0.2 0.15 0.1 0.05 6 8 10 12 Battery Life(hrs) Suppose that battery life is a normal random variable with u = 8 and o - 1.2. Using the Standard Deviation Rule, what is the probability that a randomly chosen battery will last between 6.8 and 9.2 hours? A. O 0.50 B. O 0.68 C. 0 0.95 D. O 0.997 Question 2