Out of a group of 100 US residents, how many would you expect to have travelled no more than 386.9 miles in any given year?
Two. One in prison and one in a rest home. See my other answer to this duplicate question.
I suspect you were given statistical data that you are not sharing.
To answer this question, we need to make some assumptions and use available data. Let's proceed step by step:
1. Find data on average travel distance: First, we need to determine the average travel distance of US residents in a year. To do this, we can use the data published by the U.S. Department of Transportation's Bureau of Transportation Statistics (BTS) or any similar reputable source. They collect information on travel patterns, including distances traveled.
2. Calculate the expected number of people: Once we have the average travel distance, we can use it to estimate the number of people who travel no more than 386.9 miles in a given year. We can assume that the distribution of travel distances follows a normal distribution or a similar distribution.
3. Use statistical calculations: To calculate the expected number of people who travel no more than 386.9 miles, we need to determine the mean and standard deviation of the distribution of travel distances. Once we have these values, we can use statistical formulas or tools like the cumulative distribution function (CDF) to find the probability of traveling no more than 386.9 miles. This probability can then be multiplied by the total number of US residents (100 in this case) to estimate the number of people who fall within this category.
Please note that without the specific data on average travel distance or the parameters of the distribution, we cannot provide a precise answer. However, following the steps outlined above will help you obtain an estimated answer based on available data.