menu
bartleby
search
close search
Hit Return to see all results

I am trying to calculate class boundaries. When creating the class limits, they are all the same width but the last one and I can't figure out why. My guess is the starting point I am using. Is the starting point always the lowest data point?

Question

I am trying to calculate class boundaries. When creating the class limits, they are all the same width but the last one and I can't figure out why. My guess is the starting point I am using. Is the starting point always the lowest data point?

check_circleAnswer
Step 1

Frequency distribution:

The number of values lying in the particular interval or the number of times each value repeats is the frequency of that particular class interval or event. The frequencies are calculated by using the tally mark.

Step 2

Procedure for obtaining class limits in a frequency distribution:

Step by step procedure for obtaining class limits in a frequency distribution is given below:

  • The first lower class limit might be the minimum value or any number smaller than the minimum value of the dataset based on convenience.
  • Consider the number of class intervals be n.
  • Find the class width as (maximum value – minimum value)/ number of classes. Round up or round down the obtained class width if needed.
  • Add the class width to the lower limit of the first class to get lower limit of the second class. Keep on doing this until the lower limit of the last class is obtained.
  • Now, subtract 1 from class width and add the result to the lower limit of the first class to get upper limit of the first class. Continue the same procedure to find upper limits of all classes

Hence, the lower limit of the first class need not always be the lowest data point. It might be lowest data point or any value smaller than the lowest data point.

Step 3

Class boundaries:

Class boundaries are also called as actual class limits. The class boundaries of an interval will be the class limits in case of...

fullscreen

Want to see the full answer?

See Solution

Check out a sample Q&A here.

Want to see this answer and more?

Our solutions are written by experts, many with advanced degrees, and available 24/7

See Solution
Tagged in

Math

Statistics

Related Statistics Q&A

Find answers to questions asked by student like you

Show more Q&A add
question_answer

Q: A, B, C

A: a.The two populations are ‘all the students who purchase lecture notes’ and ‘all the students who do...

question_answer

Q: please answer the whole question  (3) Let x be per capita income in thousands of dollars. Let y be t...

A: Hi, since the problem posted by you contains multiple sub-parts, we are answering the first three su...

question_answer

Q: Hi. How do you arrive at an answer using the TI-83? Thanks.

A: Solution:99% confidence interval for the slope of the regression line is calculated using EXCEL.The ...

question_answer

Q: (c) Explain why four students coming in late would not necessarily form a random sample. (Select all...

A: (c)A random sample represents the whole population properly.It can happen that some students will be...

question_answer

Q: For frecuency distribution for us governor 2019.  Party.                     Frequency Democratic.  ...

A: Given question have more than three sub parts. According to our policies cannot answer more than thr...

question_answer

Q: The standard treatment for a disease works in 0.65 of all patients. A new treatment is patients (of ...

A: (a)The provided details are:

question_answer

Q: Assume that a populatio of thousands of people whose responses were used to develop the anxiety test...

A: Hey, since there multiple subparts posted, we will answer first three subparts. If you want any spec...

question_answer

Q: Given a standardized normal distrubtion (with a mean of 0 and a standard deviation of 1, as in Table...

A: Standard normal distribution:The standard normal distribution is a special case of normal distributi...

question_answer

Q: Do heavier cars really use more gasoline? Suppose a car is chosen at random. Let x be the weight of ...

A: Hello there! There are more than three sub parts in the given quesiton. According to our policies ca...

Sorry about that. What wasn’t helpful?