The Vardon Exploration Company is getting ready to leave for South America to explore for oil. One piece of equipment requires 10 batteries that must operate for more than 2 hours. The batteries being used have a 15% chance of failing within 2 hours. The exploration leader plans to take 15 batteries. Assuming that the conditions of the binomial distribution apply, the probability that the supply of batteries will contain not enough good ones to operate the equipment is: