1. Inv #6.notebook
Investigation #6:
pg. 412-414
*statistics - the science of collecting data and interpreting the data in
order to draw conclusions and make predictions
*population - the group of people that researchers want to study
*sample - a smaller portion of the population to actually survey
*qualitative data - data that falls into categories
*quantitative data - data that is numerical
January 23, 2014
2. Inv #6.notebook
*histogram - displays quantitative data in adjacent intervals,
represented by bars that touch
*opinion survey - a type of survey conducted to collect data
based on an opinion
*circle graph (pie graph) - often used to display qualitative data
and is used to illustrate parts of a whole [percents]
January 23, 2014