1. The probability of obtaining a head for an unfair coin is 0.6. Suppose you toss this coin two times. What is the probability of getting a head and then a tail? Provide your answer to 3 decimal places.

Which of the following are one of the characteristics of correlation? You may choose more than one answers

Group of answer choices

1. We have to use correlation with caution when otliers appear in the scatterplot.
2. We can calculate the correlation between the incomes of a group of people and what city they live in.
3. Correlation is always not a number between -1 and 1.
4. The strength of the relationship increases as correlation moves away from 0 toward either -1 or 1.
5. Correlation does not describe curved relationships between variables, no matter how strong they are