QUESTION 1Tyre pressures on a certain type of car independently follow a normaldistribution with mean 1.9 bars and standard deviation 0.15 bars.(i) Find the probability t'hat all four tyres on a car of this type have pressuresbetween 1.82 bars and 1.92 bars.(ii) Safety regulations state that the pressures must be between 1.9-b barsand 1.9 + b bars. It is known that 80% of tyres are within these safetylimits. Find the safety limits.

Tyre pressures on a certain type of car independently follow a normal distribution with mean 1.9 bars and standard deviation 0.15 bars. (i) Find the probability that all four tyres on a car of this type have pressur between 1.82 bars and 1.92 bars. (ii) Safety regulations state that the pressures must be between 1.9-bbars and 1.9+ b bars. It is known that 80% of tyres are within these safety limits. Find the safety limits.

Tyre pressures on a certain type of car independently follow a normal distribution with mean 1.9 bars and standard deviation 0.15 bars. (i) Find the probability that all four tyres on a car of this type have pressur between 1.82 bars and 1.92 bars. (ii) Safety regulations state that the pressures must be between 1.9-bbars and 1.9+ b bars. It is known that 80% of tyres are within these safety limits. Find the safety limits.

A First Course in Probability (10th Edition)

10th Edition

ISBN:9780134753119

Author:Sheldon Ross

Publisher:Sheldon Ross

Chapter1: Combinatorial Analysis

Section: Chapter Questions

Problem 1.1P: a. How many different 7-place license plates are possible if the first 2 places are for letters and...

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