The following data set shows the probability distribution for a survey conducted to determine the number of bedrooms in the respondent's household. Number of bedrooms Probability 0.25 4 0.55 0.15 0.05 Total 1 (i) Calculate the mean of the probability distribution. (ii) Calculate the variance and standard deviation of this probability distribution.

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A: Note: Please repost 4th question as i can answer only 3 subparts as per my policy 1)

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A: The expected value is, μ=Ex=∑xPX=x=2×0.36+4×0.08+6×0.54+8×0.02=0.72+0.32+3.24+0.16=4.44 Thus, the…

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Estimation

A new framework of data analysis where the new statistical methods are used for interpreting the results and analyzing the data is known as estimation in statistics.