A health clinic conducts diagnostic test. The test will indicate a positive result or it will signify a negative result. The probability of a randomly selected individual testing positive is p, in other words P+ = p The probability of a randomly selected individual testing negative is p2 , in other words P- = p2

Calculate P(+). (If rounding, use at least four decimals in your answer)

If the clinic runs diagnostics on 3 randomly selected people what is the probability that at least 1 of the 3 will not test positive?