Question

The next two questions (5 and 6) refer to the following:

Section	n	min	Q1	med	Q3	max	mean	std. dev.
A01	125	10	48	67	80	96	???	17.3
A02	200	19	46	58	71	100	58.8	13.5
A03	175	34	49	54	66	95	59.6	11.9

1. Which of the following statements is/are true?
   0. 1. The distribution of scores for Section A01 is skewed to the right.
      2. About 50 students in Section A02 received a score higher than 71.
      3. If we constructed outlier boxplots, we would see that there is at least one outlier in Section A03.
   1. II only
   2. I and II only
   3. I and III only
   4. II and III only
   5. I, II and III

2. The mean score for students in all three sections combined is 60.23. What is the mean score for the students in Section A01?

            (A) 61.9                    (B) 62.3                     (C) 63.4                     (D) 64.7                  (E) 65.2

Answer 1

Answer : Which of the following statements are true

----> D ) II and III only

what is the mean score for the students in section A01

----> c) mean (A01) =63.4

Explanation :

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