I will post the answers on Blackboard. 1. In chapter 2 we learn about frequency
ID: 3204367 • Letter: I
Question
I will post the answers on Blackboard. 1. In chapter 2 we learn about frequency tables which are a way for us to summarize our data in a form that is easily understood. Compute the limit of each interval, the proportion for each interval and the percentage of the data in that interval. Years of Number of Interval Proportion Percent service employees limit 1-5 15 6 10 35 11 15 20 3 o o loo 16 20 5 21 25 15 l so 26 30 5 1350 2. Review the chart below. What is the level of measurement for the data that it is displaying? Is it the correct type of chart for that type of data? Are there any problems you can see with the chart? If so; what are they? 60.00% 50.00% 40.00% 30.00% 20.00% 10.00% 0.00% neutral somewhat a lot a little noneExplanation / Answer
Sol2:
Ordinal--Think ordered levels or ranks
the ordinal level of measurement. This level of measurement depicts some ordered relationship among the variable's observations. Suppose a student scores the highest grade of 100 in the class. In this case, he would be assigned the first rank. Then, another classmate scores the second highest grade of an 92; she would be assigned the second rank. A third student scores a 81 and he would be assigned the third rank, and so on. The ordinal level of measurement indicates an ordering of the measurements.
we are counting the data
Ordinal data must not be represented as a pie chart,
but is best shown as a column or bar chart
Here it is given in bar char for ordinal level of measurement'.
bar consists of rectangles
highest frequency here is for alot data item =50%
the problem here
n=sample size not given
Solution3:
Interval/ratio data
is best represented as a bar chart or a histogram.
For these the data is grouped.
Box plots illustrate the summary statistics for a variable in a neat way
min ,q2.(medin),q1,q3 quantiles given in box pplot.
best is histogram or box plot