Frequency tables - discrete data and summary statistics
A frequency table and graph are summaries of the results of an activity. You can use these tables or graphs to discover or estimate the:
  • mode;
  • median;
  • mean;
  • quartiles; and
  • inter-quartile range.
These are the results from 20 rolls of a die. Fill in the key summary statistics for this data once you have made the calculation
Die resultFrequency
11
25
34
44
53
63

Total = 20
Mode = ?
Mean = ?
Lower quartile = ?
Median = ?
Upper quartile = ?
Interquartile range = ?
Possible answers
Which score occurs most often? The mode = 2.
Add up all the values and divide by 20 (the number of rolls of the die). Mean = 3.6.
Which score has 25% of the results below it? Lower quartile = 2.
Which score is the middle value? For 20 scores the middle value is between the tenth and eleventh score in order from the lowest to highest. Median = 3.5.
Which score has 75% of the results below it? Upper quartile = 5.
What is the difference between the upper and lower quartiles? Interquartile range = 3.

Related Posts:

  • 37 BCS Priliminary Tips & suggession Start taking BCS preparation today to overcome the BCS Preliminary Exam hurdle. Don’t hesitate anymore and never doubt your quality-level. Be informed that the BCS cadres who are in their jobs now were not superhuman at… Read More
  • Eco-Behavioral Adaptation of Camel Ships of the desert Camels were domesticated more than 3,000 years ago, and to this day, humans depend on them for transport across arid environments. They can easily carry an extra 200 pounds (90 kilograms) while wal… Read More
  • Respiration & secondary metabolism of plants I.             Overview                 A.       … Read More
  • Effect of Pornography (Video) Porn Trains You to Have Immediate Gratification and Have a Difficult Time Lasting Long With porn, when you’re aroused you reach orgasm very quickly, because porn users tend to masturbate at the same time. Thus, orgasm te… Read More
  • X-Ray Technology in Flight Pre-Screening In Panter I wrote about backscatter imaging as a pre-flight security clearance tactic. Backscatter imaging operates much differently than x-ray technologies, the later is more frequently used and has been in … Read More

0 Comments:

Powered by Blogger.

Visitors

197866
Print Friendly Version of this pagePrint Get a PDF version of this webpagePDF


 download University Notes apps for android

Popular Posts

Flag Counter