Forbes magazine published data on the best small firms in 2012. These were firms
ID: 3216542 • Letter: F
Question
Forbes magazine published data on the best small firms in 2012. These were firms which had been publicly traded for at least a year, have a stock price of at least $5 per share, and have reported annual revenue between $5 million and $1 billion. The table below shows the ages of the chief executive officers for the first 60 ranked firms.
A. what is the population in this case and What is the sample in this case? is it 60? and 34?
B. If you found the mean for this data, would it be a statistic or a parameter? statistic?
C. Construct a histogram for this data. I have the histrogram
D Give an example of a qualitative variable, a quantitative discrete variable anf quantitative continuous variable.??
age frequency relative frequency cumulative relative frequency 40-44 3 .05 .05 45-49 11 .183333 .23333333 50-54 13 .216667 .45 55-59 16 .266667 .716666667 60-64 10 .16667 .883333333 65-69 6 .1 .983333333 70-74 1 .016667 1Explanation / Answer
(A) population is the age of chief of executive of small firms in 2012
(B) statistic
this data is part of the population i.e. first 60 ranked firm.
(D)qualitative variable: eye color of student of a class
A qualitative variable, also called a categorical variable, are variables that are not numerical. It describes data that fits into categories. For example: Eye colors (variables include: blue, green, brown, hazel).
quantitative discrete variable ::number of students in a class
quantitative continuous variable: height of students in a class
There are two types of quantitative data, which is also referred to as numeric data:continuous and discrete. As a general rule, counts are discrete and measurements are continuous.Discrete data is a count that can't be made more precise.
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