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Bsbwor504 Problem 3

Decent Essays

A) The sample is the 100 students that took the survey and the population are the students at the school. B) i: The purpose of using descriptive statistics is to try to estimate the student population’s stress level as they are preparing for exams. ii: The purpose of inferential statistics is to try to make sure that the population of students are not too stressed for their exams. Problem 2.4: Choice of diet is categorical data Time spent in previous month attending a place of religious worship is continuous quantitative data Ownership of a personal computer is categorical data The number of people you have known who have need elected to a political office is a discrete quantitative data Problem 2.6: The length of time to run a marathon is continuous data. The …show more content…

Approximately 30% of the setosa blossoms in the data set has a width of more than 0.25 cm It is not possible to accurately determine the percentage of blossoms with a width of more than 0.3 cm because the data values needed to accurately determine the percentage are not present in the histogram. Problem 2.50: $15,000 seems the most posable answer. This is because the general rule of thumb is that nearly all observations fall into 3s of the mean. Since the mean is $239,800, $1,000,000 would be too much for 3 times $1,000,000 is $3,000,000 making the lower end of the observations would be negative numbers, which would not make since for selling new homes. $60,000 also seems to be to high of a number. Even though the lower observations would not go into the negatives, observations near 3s still seems too low for the price of a new house. $1,000 would be to small because it would make too small of a range, which would be from $236,800 to $242,800. Problem 2.67: The standard deviation range is preferred because it uses all the data sets IQR is sometimes preferred because it is resistant to

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