The number of Instagram posts of members of a company on Sundays has the following valid probability distribution. X (Number of posts) 0 1 2 3 P(X) p 0.4 0.05 0.15 a)  Calculate the value of p. b)  Calculate the mean number of posts of members of a company on Sundays. c) Calculate the standard deviation of this distribution and interpret it.

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Types of Bias

Statistics is the study of data collection, organization, analysis, interpretation, and presentation. Statistical bias is a characteristic of a statistical technique or its findings in which the expected value deviates from the actual root quantitative parameter being estimated. According to the actual definition of bias, it refers to the tendency of a statistic to overestimate or underestimate a parameter.