Welcome Back to Stats!

Front

Why do we randomly select our samples?

Back

To reduce bias in the results.

Front

What type of correlation is represented when one variable increases and the other variable also increases?

Back

Positive Correlation.

Front

What is the source of bias that occurs when you ask people who are easy to ask?

Back

Convenience Sampling.

Front

What is the theoretical probability of pulling a red marble from a bag containing 3 red, 2 blue, and 4 yellow marbles?

Back

1/3.

Front

What does the orange line represent in a box plot?

Back

Q3 (the third quartile).

Front

Define 'Bias' in statistics.

Back

Bias refers to systematic errors that lead to incorrect conclusions.

Front

What is 'Convenience Sampling'?

Back

A sampling method where participants are selected based on their easy availability.

Front

Explain 'Positive Correlation' with an example.

Back

A relationship where an increase in one variable leads to an increase in another, e.g., height and weight.

Front

What is 'Theoretical Probability'?

Back

The ratio of the number of favorable outcomes to the total number of possible outcomes.

Front

Define 'Response Bias'.

Back

A tendency of respondents to answer questions inaccurately or falsely.