3. The stem-and-l on cognitive functioning in a study Variable: .15 mg/kg leaf d

Question

3. The stem-and-l on cognitive functioning in a study Variable: .15 mg/kg leaf diagrams below summarize the distribution of treatment effects of a drug 2 78 3 224 355666999 4 : 01222334 4:88888 5 223 Variable: .30 mg/kg 2:59 3 : 04 3:5666 4: 00122344 0 6 :5 Which of the following statements are true? . There were 30 patients in the study The distribution for both of the treatments are bell-shaped. II. The 0.30 mg/kg treatment has a potential outlier. C) I and III D) II and III A) I only B) III only

Explanation / Answer

Since in both cases frequency in middle is more than that in the both tails of both cases hence distribution is bell shaped

While for 0.3mg case there is only one value >50 i.e.69 hence it's a potential outlier

Hence

D) option is correct

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