# Understanding the Mean Graphically: Four or more bars Online Quiz

Following quiz provides Multiple Choice Questions (MCQs) related to **Understanding the Mean Graphically: Four or more bars**. You will have to read all the given answers and click over the correct answer. If you are not sure about the answer then you can check the answer using **Show Answer** button. You can use **Next Quiz** button to check new set of questions in the quiz.

**Q 1 - The four bars in a bar graph have heights 14, 15, 16 and 19. What height a new should have so that it is the mean height of the four bars?**

### Answer : C

### Explanation

**Step 1:**

Heights of given bars 14, 15, 16 and 19.

**Step 2:**

Mean height = $\frac{(14 + 15 + 16 + 19)}{4} = \frac{64}{4}$ = 16

So height of new bar = 16

**Q 2 - The four bars in a bar graph have heights 14, 16, 18, and 22. What height a new bar should have so that it is the mean height of the four bars?**

### Answer : A

### Explanation

**Step 1:**

Heights of given bars 14, 16, 18 and 22

**Step 2:**

Mean height = $\frac{(14 + 16 + 18 + 22)}{4} = \frac{70}{4}$ = 17.5

So height of new bar = 17.5

**Q 3 - The four bars in a bar graph have heights 10, 14 16 and 18. What height a new should have so that it is the mean height of the four bars?**

### Answer : B

### Explanation

**Step 1:**

Heights of given bars 10, 14, 16 and 18

**Step 2:**

Mean height = $\frac{(10 + 14 + 16 + 18)}{4} = \frac{58}{4}$ = 14.5

So height of new bar = 14.5

**Q 4 - The four bars in a bar graph have heights 9, 13, 15 and 17. What height a new bar should have so that it is the mean height of the four bars?**

### Answer : D

### Explanation

**Step 1:**

Heights of given bars 9, 13, 15 and 17

**Step 2:**

Mean height = $\frac{(9 + 13 + 15 + 17)}{4} = \frac{54}{4}$ = 13.5

So height of new bar = 13.5

**Q 5 - The four bars in a bar graph have heights 11, 14, 15 and 16. What height a new bar should have so that it is the mean height of the four bars?**

### Answer : C

### Explanation

**Step 1:**

Heights of given bars 11, 14, 15 and 16

**Step 2:**

Mean height = $\frac{(11 + 14 + 15 + 16)}{4} = \frac{56}{4}$ = 14

So height of new bar = 14

**Q 6 - The four bars in a bar graph have heights 9, 12, 13 and 14. What height a new bar should have so that it is the mean height of the four bars?**

### Answer : A

### Explanation

**Step 1:**

Heights of given bars 9, 12, 13 and 14

**Step 2:**

Mean height = $\frac{(9 + 12 + 13 + 14)}{4} = \frac{48}{4}$ = 12

So height of new bar = 12

**Q 7 - The four bars in a bar graph have heights 15, 16, 17 and 20. What height a new bar should have so that it is the mean height of the four bars?**

### Answer : B

### Explanation

**Step 1:**

Heights of given bars 15, 16, 17 and 20

**Step 2:**

Mean height = $\frac{(15 + 16 + 17 + 20)}{4} = \frac{68}{4}$ = 17

So height of new bar = 17

**Q 8 - The four bars in a bar graph have heights 13, 15, 17 and 21. What height a new should have so that it is the mean height of the four bars?**

### Answer : D

### Explanation

**Step 1:**

Heights of given bars 13, 15, 17 and 21

**Step 2:**

Mean height = $\frac{(13 + 15 + 17 + 21)}{4} = \frac{66}{4}$ = 16.5

So height of new bar = 16.5

**Q 9 - The four bars in a bar graph have heights 15, 17, 19 and 23. What height a new bar should have so that it is the mean height of the four bars?**

### Answer : C

### Explanation

**Step 1:**

Heights of given bars 15, 17, 19 and 23

**Step 2:**

Mean height = $\frac{(15 + 17 + 19 + 23)}{4} = \frac{74}{4}$ = 18.5

So height of new bar = 18.5

**Q 10 - The four bars in a bar graph have heights 10, 13, 14 and 15. What height a new bar should have so that it is the mean height of the four bars?**

### Answer : A

### Explanation

**Step 1:**

Heights of given bars 10, 13, 14 and 15

**Step 2:**

Mean height = $\frac{(10 + 13 + 14 + 15)}{4} = \frac{52}{4}$ = 13

So height of new bar = 13