Class Interval Frequency Class boundaries Class Mid−point $1.5-1.9$ $2$ $1.45-1.95$ $1.7$ $2.0-2.4$ $21$ $1.95-2.45$ $2.2$ $2.5-2.9$ $4$...

Assessment: JAMB UTME - Mathematics - 1995 Subject: General Mathematics

Question 1 Report

Class Interval	Frequency	Class boundaries	Class Mid−point
$1.5-1.9$	$2$	$1.45-1.95$	$1.7$
$2.0-2.4$	$21$	$1.95-2.45$	$2.2$
$2.5-2.9$	$4$	$2.45-2.95$	$2.7$
$3.0-2.9$	$15$	$2.95-3.45$	$3.2$
$3.5-3.9$	$10$	$3.45-3.95$	$3.7$
$4.0-4.4$	$5$	$3.95-4.45$	$4.2$
$4.5-4.9$	$3$	$4.45-4.95$	$4.7$

Find the mode of the distribution above to find the mode of the distribution.

3.2

3.3

3.7

4.2

Answer Details

Mode = a + (b - a)(fm - Fb)

2Fm - Fa - Fb

= 3.0 + $\frac{(3.4 - 3) (15 - 4)}{2 (15) - 4 - 10}$

= 3 + $\frac{(6.4) (11)}{30 - 14}$

= 3 + $\frac{4.4}{16}$

= 3 + 0.275

= 3.275

= 3.3cm

Read lesson note on Representation Of Data (JAMB)

Read lesson note on Measures Of Dispersion (JAMB)

Representation Of Data

Measures Of Dispersion

View Answer

Class Interval	Frequency	Class boundaries	Class Mid−point
\(1.5-1.9\)	\(2\)	\(1.45-1.95\)	\(1.7\)
\(2.0-2.4\)	\(21\)	\(1.95-2.45\)	\(2.2\)
\(2.5-2.9\)	\(4\)	\(2.45-2.95\)	\(2.7\)
\(3.0-2.9\)	\(15\)	\(2.95-3.45\)	\(3.2\)
\(3.5-3.9\)	\(10\)	\(3.45-3.95\)	\(3.7\)
\(4.0-4.4\)	\(5\)	\(3.95-4.45\)	\(4.2\)
\(4.5-4.9\)	\(3\)	\(4.45-4.95\)	\(4.7\)

Class Interval Frequency Class boundaries Class Mid−point \(1.5-1.9\) \(2\) \(1.45-1.95\) \(1.7\) \(2.0-2.4\) \(21\) \(1.95-2.45\) \(2.2\) \(2.5-2.9\) \(4\)...

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Class Interval Frequency Class boundaries Class Mid−point \(1.5-1.9\) \(2\) \(1.45-1.95\) \(1.7\) \(2.0-2.4\) \(21\) \(1.95-2.45\) \(2.2\) \(2.5-2.9\) \(4\)...

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