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Probability distribution (b) Calculate the mean and standard deviations of x. (5 marks) 2) According to a survey, 30% of adults are against using animals

Probability distribution

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(b) Calculate the mean and standard deviations of x. (5 marks) 2) According to a survey, 30% of adults are against using animals for research. Assume that this result holds true for the current population of all adults. Let x be the number of adults who are against using animals for research in a random sample of two adults. Obtain the probability distribution of x. draw a tree diagram for this

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