Question

In a shopping mall, a customer will get a scratch coupon after shopping for over a certain amount. The customer will get cashback between ₹1 to ₹100. Madhu is a regular customer to the shopping mall. The cashback she received over a period of six months is shown in Table 3.1.2.

How much percentage of total time, did she receive the cashback worth of ₹40 to ₹60?

Answer 1

17.14% of the total time Madhu received a cashback of ₹40 to ₹60.

Given:

From the table, we can see the number of times Madhu received a cashback worth ₹40 to ₹60 $=6$

To Find:

How much percentage of total time, did she receive the cashback worth of ₹40 to ₹60?

Solution:

From the table, we can see,

Total number of times Madhu received a cashback = Frequency of Class 1-20 + Frequency of Class 20-40 + Frequency of Class 40-60 + Frequency of Class 60-80 + Frequency of Class 80-100

                                                $=5+10+6+8+6\\=35$ ..........(1)

The number of times Madhu received cashback worth ₹40 to ₹60

                                               $=6$  ...........(2)

Percentage of the total time she received the cashback worth of ₹40 to ₹60

                                          $=\frac{The number of times Madhu received cashback worth Rs 40 to Rs60}{Total number of times Madhu received a cashback}*100$

i.e.,    $=\frac{(2)}{(1)}*100$

        $=\frac{6}{35}*100$  

        $=17.14$%

Hence, 17.14% of the total time Madhu received the cashback worth of ₹40 to ₹60.