Probability of events-sum rule

Reference no: EM13104082

Our psychology department received a new statistics text for review. Prof. Smart in his review provided an interesting table of corrections.

Type: Alterations: 20%, Spelling 50%, Spelling and alterations: 10%.

Assuming that spelling and alterations are the only possible types of corrections, calculate the probability of spotting a correction due to an alteration error or a spelling error and the probability of detecting no correction.

Reference no: EM13104082

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