Problems 1-5 pertain to the data set of 90 measurements represented b in which the stems are the digits in the tens place and leaves are the digits in the ones P For these data Ex = 6, 600 and Ex? = 500, 940. 9 0 2 3 4 4 5 6 0 0 6 5 8 8 9 9 7 / 4 4 7 7 8 0 6 6 7 8 9 6 1 8 5 0 2 4 6 6 7 8 9 1. The sample mean of this data set is about (a) 75.4 (b) 76.8 (c) 73.3 (d) 70.5 (e) 66.0 2. The sample standard deviation of this data set is about (a) 190.3 (b) 13.8 (c) 52.8 (d) 11.3 (e) 5.7 3. The sample inedian is about (3) 69 (b) 72.5 (c) 76.5 (d) 73.5 (e) 73 4. The sample range is about (a) 52 (b) 90 (c) 64 (d) 13 (e) 98 5. The percentile rank of the measurement 89 is about (a) 89 (b) 91 (c) 87 (d) 10 6. (e) 84 debit card are The events C: a randomly selected adult has a credit card and D: a randomly selected adult has a (a) Independent because P(C) . P(D) = P(Cn D) (b) Independent because P(C) . P(D) # P(Cn D) (c) Dependent because P(C) . P(D) = P(Cn D) (d) Dependent because P(C) . P(D) # P(CnD) (e) impossible to tell if independent or not (insufficient information)