(a) What is the probability that more than  30 drivers will fail to activate their turn signal before changing lanes                                                                                                                                                                                                                                                       (b) What is the standard deviation of the number drivers who do not activate their turn signals before changing lanes?                                                                                                                                                                                                                                                        (c) What is the probability  that between  18 and 26 drivers (both numbers included in the interval) will fail to use their turn signals   before changing lanes?

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A:

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A: Given: μ = 80 σ = 8 n = 25

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.