One test for esp involves using zener cards. Each card shows one of five different symbols (square, circle, star, cross, wavy lines) and the person being tested has to predict the shape on each card before it is selected. If a person has no esp and is just guessing, what is the probability of correctly predicting more than 30 cards in a series of 100 trials?

the answer is:

in a biology class, the teacher started explaining a new lesson about the dna structure. personally, i found this lecture hard to understand. so i decided to use my critical thinking skills to be able to understand it. i analysed the different ideas, and broke them down into smaller parts to assimilate each. then i started evaluation and tried to link what i am learning with real life experiences so that i can make sure that i know how everything i am learning relates. finally, i started questioning by researching more what i learned and asking more questions that can me through my learning process. reflecting on the information meant that i should review it. all this me greatly understand what i previously found hard to understand.

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