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.

The amount of beverage in a 16-oz bottle is normally distributed with a mean of16.2 oz and a standard deviation of 0.1 oz. Find the probability that the amount ofbeverage in a randomly select can is (a) between 15.5 and 16.2 oz, (b) more than16.4 oz, (c) less than 16.1 oz. NOTE: Please explain each part, so the problem can be used as a Study Guide

The body temperatures of a group of healthy adults have a​bell-shaped distribution with a mean of 98.36°F and a standard deviation of 0.58°F. Using the empirical​ rule, find each approximate percentage below. What is the approximate percentage of healthy adults with body temperatures within 2 standard deviations of the mean, or between 97.20°F and 99.52°​F? What is the approximate percentage of healthy adults with body temperatures between 96.62°F and 100.10°​F?

In a certain country the heights of adult men are normally distributed with a mean of 70.2 inches and a standard deviation of 2.7 inches. The​ country's military requires that men have heights between 66 inches and 79 inches. Determine what percentage of this​ country's men are eligible for the military based on height. The percentage of men that are eligible for the military based on height is nothing​%. ​(Round to two decimal places as​ needed.)

The body temperatures of a group of healthy adults have a bell-shaped distribution with a mean of 98.33°F and a standard deviation of 0.52°F. Using the empirical rule, find each approximate percentage below a. What is the approximate percentage of healthy adults with body temperatures within 3 standard deviations of the mean, or between 96.77F and 99.89°F? b. What is the approximate percentage of healthy adults with body temperatures between 97.29°F and 99.37°F? a. Approximately% of healthy adults in this group have body temperatures within 3 standard deviations of the mean, or between 96.77°F and 99.89°F. (Type an integer or a decimal. Do not round.)

The population mean of a company's racing bicycles is 9.07 kg (20.0 1b) with a population standard deviation of 0.40 kg. If the distribution is approximately normal, determine (a) the percentage of bicycles less than 8.30 kg, (b) the percentage of bicycles greater than 10.00 kg, and (c) the percentage of bicycles between 8.00 and 10.10 kg.

The blood platelet counts of a group of women have a bell-shaped distribution with a mean of 260.4 and a standard deviation of 60.2. (All units are 1000 cells/uL.) Using the empirical rule, find each approximate percentage below. a. What is the approximate percentage of women with platelet counts within 3 standard deviations of the mean, or between 79.8 and 441.0? b. What is the approximate percentage of women with platelet counts between 140.0 and 380.8? ..I. a. Approximately % of women in this group have platelet counts within 3 standard deviations of the mean, or between 79.8 and 441.0. (Type an integer or a decimal. Do not round.)