Purchase Solution

Frequency Distribution and Percentile Rank

Not what you're looking for?

Ask Custom Question

1. The following are marks obtained by a group of 40 students on an English examination:
42 88 37 75 98 93 73 62
96 80 52 76 66 54 73 69
83 62 53 79 69 56 81 75
52 65 49 80 67 59 88 80
44 71 72 87 91 82 89 79
Prepare a chart showing:
A.Frequency distribution and a cumulative frequency distribution for these scores, using a class interval of 5
B.The exact limits and the midpoints of the class intervals for the frequency distribution
C.The cumulative percentage frequency distribution
D.Prepare a histogram and a frequency polygon for the above data
E.For the scores in question one, calculate:
1)The percentile rank of someone who scores an 83
2)The score that falls at the 70th percentile

2 : Prepare a frequency distribution, and cumulative percentage distribution for the following scores:
2 11 6 4 18 1 9 2 2 15
8 16 12 11 17 3 3 5 3 7
11 9 5 16 16 16 4 9 5 7
4 10 4 4 15 15 5 5 11 18
5 10 9 8 7 7 2 6 13 1

3. Prepare a histogram and a frequency polygon for the above data
20. For the scores in question 2 above, calculate
1)The percentile rank for someone who scores a 14
2)That scores that falls at the 66th percentile

Attachments
Purchase this Solution

Solution provided by:
Education
  • MSc, Osmania University
  • MSc, Indian Institute of Technology - Roorkee (I.I.T.-ROORKEE)
  • BSc, Banaras Hindu University
Recent Feedback
  • "Very fast turnaround. Excellent communication! Much appreciated!"
  • "excellent"
  • "excellent"
  • "excellent work"
  • "Fantastic..great solution and very well explained!!!!"
Purchase this Solution


Free BrainMass Quizzes
Know Your Statistical Concepts

Each question is a choice-summary multiple choice question that presents you with a statistical concept and then 4 numbered statements. You must decide which (if any) of the numbered statements is/are true as they relate to the statistical concept.

Terms and Definitions for Statistics

This quiz covers basic terms and definitions of statistics.

Measures of Central Tendency

This quiz evaluates the students understanding of the measures of central tendency seen in statistics. This quiz is specifically designed to incorporate the measures of central tendency as they relate to psychological research.

Measures of Central Tendency

Tests knowledge of the three main measures of central tendency, including some simple calculation questions.