Q7. The probability that a lab specimen is contaminated is 0.10. Three independent specimen are checked. 1) the probability that none is contaminated is: (A) 0.0475 (B) 0.001 (C) 0.729 (D) 0.3 2) the probability that exactly one sample is contaminated is: (B) 0.0^1 (A) 0. (C) 0.70Y (D) 0.3