5. The table below presents the joint probability distribution of reading speed (word per minute) and levels of comprehension (percent of text understood) obtained from a sample of 200 readers. Reading Speed 200 400 600 20% 0.05 0.05 0.01 Comprehension 60% 0.03 0.30 0.14 85% 0.02 0.25 0.15 i. Create the marginal probability distributions from the above table. ii. Calculate the expected values and standard deviation. iii. Calculate the correlation between the two variables. Interpret your answer.

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