In 2009, the FDA Oncology Drug Advisory Committee (ODAC) recommended that the drug Avastin be approved for use in glioblastoma, a form of brain cancer. Tumor shrinkage after taking a drug is called a response. Historically, response probabilities for brain cancer drugs are approximately 0.05, or about 5%. Based on historical results, if a random sample of 275 individuals using Avastin is collected, how many "successes" should we expect? Use RStudio to calculate the probability (rounded to three decimal places, if necessary) that more than 6.5% of the sample has a response to the drug