##### Admin

**Use the information below to answer the question that follows.**

**What is the average of the heights of rice within the period of cultivation?**

**A. 68cm**

**B. 47.8cm**

**C. 48cm**

**D. 67.8cm**

**QUICK ANSWER…**

**C**

**DETAILS…**** **** **

**The years of cultivation are indicated at the horizontal axis, while the height of rice is indicated at the vertical axis.**

**To find the average of the heights, we need to firstly find the total height and then divide it by the number of bars.**

**To calculate the total height of rice that grew in all the years, we add all the heights indicated by the histogram.**

**Total height = 55 + 50 + 60 + 40 + 35 = 240 cm**

**Also, number of bars = 5**

**Hence, the average of the heights within the cultivation period = 240/5 = 48 cm**

**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 that:**

**You must read and understand the information a chart is conveying before attempting to answer any question that follows.**

**Use the questions and answers session to raise further questions and deal more on this topic…**

**/ culled from 2016 JAMB-UTME biology past question 48 /**

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