Plz ! tammy’s last four homework scores were 68, 76, 70, and 74. the mean absolute deviation of her scores . a.0 b.3 c.12 d.72 tammy worked hard on yesterday’s assignment and feels confident that this homework score will be at least a 90. predict what will happen to her mean absolute deviation if she is correct:a. it will stay the same b. it will go up c. it will go down tammy was correct. she earned a 92! the new mean absolute deviation of her homework scores now that they are 68, 76, 70, 74, and 92 is: . a.2.4 b.3 c.6.4 d.32