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