which one is the correct answer : 1.This is used when X is the value in the distribution, is the mean of the distribution, and is the standard deviation of the distribution.

		z-score
		p-score
		Greedy method
		two-tailed test

2.A ________ is a type of interval statistic for a population parameter.

		confidence interval
		mixed interval
		null Hypothesis
		85% confidence

3.

Collaborative filtering methods have been applied to many kinds of data, including ________ and ________ data, for mineral exploration, environmental sensing, and financial data.

		logistics and regression
		sensing and monitoring
		stats and model
		search and strategy