Given below is a frequency distribution table. Read it and answer… - Vidyadip

Question

Given below is a frequency distribution table. Read it and answer the questions that follow:

Class Interval	Frequency
$10-20$	$5$
$20-30$	$10$
$30-40$	$4$
$40-50$	$15$
$50-60$	$12$

$a.$ What is the lower limit of the second class interval?
$b.$ What is the upper limit of the last class interval?
$c.$ What is the frequency of the third class?
$d.$ Which interval has a frequency of $10$?
$e.$ Which interval has the lowest frequency?
$f.$ What is the class size?

✓

Answer

$a.$ The lower limit of second class interval $(20-30)$ is $20$.
$b.$ The upper limit of the last class interval $(50-60)$ is $60$.
$c.$ The frequency of the third class $(30-40)$ is $4$.
$d.$ The interval $(20-30)$ has a frequency of $10$.
$e.$ The interval $(30-40)$ has the lowest frequency, i.e. $4$.
$f.$ We know that,
Class size $=$ Upper class limit $-$ Lower class limit Consider first class,
i.e. $10-20$, then class size $= 20 - 10 = 10$.

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