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

understanding_mean_graphically_four_or_more_bars.htm

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