2 Answers

# The table above shows the frequency distribution of marks…

**Quick Navigation Panel**hide

Latest posts by Admin (see all)

- Which of the following is a set of neutral oxides? - 11/25/2022
- A secondary alkanol can be oxidized to give… - 11/25/2022
- The IUPAC name for CH3CH2COOCH2CH3 is… - 11/25/2022

Marks | 2 | 3 | 4 |

Frequency | 4 | 4 | y |

**The table above shows the frequency distribution of marks obtained by a group of students. If the total marks is 48, find the value of y**

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

**QUICK ANSWER…**

**C**

**SOLUTION****… **** **

**Proper interpretation of this table shows that:**

**Mark 2 appeared 4 times,**

**Mark 3 appeared 4 times, and**

**Mark 4 appeared y times.**

**Therefore, total marks = 2 ****×**** 4 ****+ 3 × 4 + 4 × y = 48**

**8 + 12 + 4y = 48**

**20 + 4y = 48**

**4y = 48 – 20**

**4y = 28**

**y = 28/4 = 7**

**Now for the right answer to the above question:**

**Option A is incorrect.****Option B is incorrect.****C is correct.****D is not the correct answer.**

**QUICK TIPS…**

**You may please note the****se/this****:**

**The presence of frequency means each mark appeared more than once, so put this into consideration while solving for the total mark.**

**You are free to add your own answers below this page to assist others improve their learning.**

**You can also click the golden ASK A QUESTION BOTTON down this page to raise new related questions… OUR COMMUNITY OF EXPERTS WILL BE MORE THAN HAPPY TO TACKLE IT…**

**/ culled from 2016 JAMB-UTME mathematics past question 19 /**