**Analysis of Student-s Statistical Thinking Ability in Understanding The Statistical Data***Masjudin, Ahmad Muzaki, Zainal Abidin, Ida Ayu Putri Ariyanti*

IKIP Mataram

Jalan Pemuda No. 59A Mataram, 83125, Indonesia

**Abstract**

The purpose of this research is to describe the students statistical thinking ability in understanding statistical data. The statistical thinking consists of the following four indicators: (a) ability to describe data; (b) ability to organize and reduce data; (c) ability to represent data; and (d) ability to analyze and interpret data. This research is a descriptive research with a qualitative approach. The subjects in this research were eighth grade students of SMP Negeri 3 Lingsar. Data collection techniques by providing evaluation tests statistical thinking abilities and interviews. The results of this research showed that 4.2% of students had high statistical thinking ability, 25% of students had medium statistical ability, and 70.8% of students had low statistical thinking ability. So that, can be concluded the statistical thinking ability of students is in the low category. Student achievement in each indicator of statistical thinking ability is detailed as follows: (a) students ability to describe data is in the high category; (b) students ability to organize and reduce is in the high category; (c) students- ability to represent data is in the medium category; and (d) Students- ability to analyze and interpret data is in the low category.

**Keywords:** Statistical thinking ability; Statistical data

**Topic:** Mathematics Education