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STATISTICS - Jamb Mathematics Past Questions and Answers

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Jamb Mathematics Past Questions

Jamb Past Questions and Answers on STATISTICS

Question 341:


The bar chart above shows the number of visitors received in a week. How many visitors were received on Friday, Tuesday and Sunday?

A. 17
B. 22
C. 20
D. 16


Question 342:


\(\begin{array}{c|c}
Marks & 2 & 3 & 4 \\
\hline
Frequency & 4 & 4 & y
\end{array}\)
The table above shows the frequency distribution of marks obtained by a group of students. If the total mark is 48, find the value of y.

A. 6
B. 8
C. 7
D. 5


Question 343:


Find the mean of 10, 8, 5, 11, 12, 9, 6, 3, 15, and 23.

A. 11.2
B. 10
C. 10.2
D. 11.3


Question 344:


OGIVE is constructed using

A. Third quartile range
B. Semi-quartile range
C. Cummulative frequency table
D. Inter-quartile table


Question 345:


The bar chart above shows the marks obtained by students in a mathematics test.
How many students in all took the test?

A. 40
B. 30
C. 10
D. 20






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