The imply/mean of X, the variety of sufferers visible till an injection response/reaction takes place is 9.0909 option (c).
What is imply: The imply refers to "the common set of values". According to the question, The percent of sufferers experiencing injection- webweb page reactions with the present day needle is eleven%.
Mean = sum of all values / total variety of values
Total variety of values = 11% = 0.11 and n = 1.
Mean = 1/0.11
Mean =9.0909.
Hence, the imply of X, the variety of sufferers visible till an injection response / reaction takes place is 9.0909.
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