Factors that cause errors are (1) aspects of analysis: not exactly in choosing the operation used the problem, the accuracy of students who are still lacking and the students are less careful in doing the calculations. Result of research indicate that type of error tends to be done by student, (1) analyze aspect that is transformation error and process skill mistake, (2) evaluate aspect that is error of understanding and mistake of transformation, while (3) aspect create transformation mistake. Validity of data using triangulation technique that is from test result and interview. Data analysis techniques used are data reduction, data presentation and conclusions. Technique data that is done is test and interview method. The type and design of this research is descriptive qualitative research, involving 31 students of class VII J SMP Negeri 2 Mojolaban. This study aims to describe errors made by students in solving the problem of HOTS social arithmetic material and describe the factors that cause the error.

Through the analysis of newman error will be obtained a detailed picture of the mistakes made by students and the factors that cause errors. The factors that cause these mistakes are the students are less mastering the material, students are less thorough, students in haste and students dont understand the steps of completion.Abstract The problem of the difficulty of his students understand mathematical materials such as HOTS-shaped matter taken from social arithmetic material, resulting in students make mistakes in solving the problem. And the biggest mistake is the concept mistake. The types of errors are concept errors, data use errors, technical errors and errors of inference. The results showed that students make mistakes in solving statistical problems. The errors are done students in solving math problems on the subject statistics are analyzed by type of concept error, data use error, engineering error, language interpretation error, conclusion withdrawal error. The data collected in this research are observation, diagnostic test of satistical description, and interview to students who made the most mistake and varied. From all students of class XI IPA will be selected 4 people as informant. Research subjects are all students of class XI IPA SMA Negeri 08 Tanjung Jabung East with the number of students 61 people. The type of research used is qualitative research, which uses descriptive research methodology. (2) Factors that cause students to make mistakes.

The purpose of this study is to determine: (1) Types of mistakes made by students in solving statistical problems.

Soal statistika sma