Question: Please help with the following attached questions: The probability that at least one of the events M and N occur is 0.6. If M and

Please help with the following attached questions:

The probability that at least one of the events M and N occur is 0.6. If M and N have probability of occurring together as 0.2, then P(M ) + P(N ) is? Select one: O a. 1.2 O b. 0.8 O c. 0.4 O d. IndeterminateWhat's the critical z-value for an 85% confidence interval? Select one: O a. 1.04 O b. Can't be determined without knowing the sample size O c. 1.44 O d. Can't be determined without knowing the population standard deviation O e. 0.8023

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