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7. For a set of Data: 2, 6, 13, 21, 26, 30, 35, and 38. The seventy percentile is located between: a. 6 and 13 C. 30and 35 b. 13 and 21 d. 35 And 38. 8. If the events A and B are mutually exclusive, then a) P (A| B) = zero b) P (AnB) = zero c) P (B| A) = zero d) All of the above 9. If P(A | B) = 0.650, P(A n B) = 0.300, then P(B) = a. 0.22 c. 0.30 b. 0.46 d. 0.50 10. The mean of 6 observations is 7, if we added the observation 8. What is the new mean? a) 8.33 b) 7.17 c) 6.50 d) no enough information