Question

Refer to the following distribution:Cost of Textbooks Frequency $25 up to $35 2 S35 up to $45 5$45 up to $55 7$55 up to $65 20 S65 up to $75 16What is the relative class frequency for the $25 up to $35 class? A) 0.10 B) 0.05 C) 0.02 D) 0.04

Answer 1

Answer:

$Relative\ Frequency = 0.04$

Step-by-step explanation:

Given

Cost of Textbooks ---- Frequency

$25 up to $35  -----      2

$35 up to $45 -------     5

$45 up to $55  -------    7

$55 up to $65   ------    20

$65 up to $75   ----   -- 16

Required

Determine the relative class frequency for the $25 up to $35 class

First, we need to get the total frequency

$Total = 2 + 5 + 7 + 20 + 16$

$Total = 50$

Next, is to write out the frequency of $25 up to $35 class

$Frequency = 2$

Divide this frequency by the total frequency; This gives the relative frequency

$Relative\ Frequency = \frac{Frequency}{Total}$

$Relative\ Frequency = \frac{2}{50}$

$Relative\ Frequency = 0.04$

Hence;

Option D answers the question