Statistic Jamb Mathematics Past Questions

Question 11

Find the variance of 2x, 2x-1 and 2x+1

jamb 2006

  • A. 2/3
  • B. 2
  • C. √(2/3)
  • D. 1
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Question 12

The histogram above represents the weights of students who traveled out to their school for an examination. How many people made the trip?

jamb 2007

  • A. 78
  • B. 38
  • C. 29
  • D. 69
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Question 13

No. of days 1 2 3 4 5 6
No. of students 20 x 50 40 2x 60
The distribution above shows the number of days a group of 260 students were absent from school in a particular term. How many students were absent for at least four days in the term?

jamb 2009

  • A. 180
  • B. 120
  • C. 110
  • D. 160
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Question 14

Marks 2 3 4 5 6 7 8
No. of students 3 1 5 2 4 2 3
from the table above, if the pass mark is 5, how many students failed the test?

jamb 2010

  • A. 6
  • B. 2
  • C. 7
  • D. 9
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Question 15

Marks 2 3 4 5 6 7 8
No. of students 3 1 5 2 4 2 3
The table above show the marks obtained in a given test. How many student took the test?

jamb 2010

  • A. 16
  • B. 13
  • C. 20
  • D. 15
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