Drawing and Reading of Box and Whiskers Plot

Q. The following box and whiskers plot represents the number of passengers travelling in a bus at different times of a day.


Which of the following is correct for the above box and whiskers plot?

1. Lower extreme	$95$
   Upper extreme	$130$
   Lower quartile	$65$
   Middle quartile	$110$
   Upper quartile	$145$
   Inter-quartile range	$35$

2. Lower extreme	$65$
   Upper extreme	$145$
   Lower quartile	$95$
   Middle quartile	$110$
   Upper quartile	$130$
   Inter-quartile range	$35$

3. None of the above.

Q. In a survey, the mileage of cars in miles per gallon are collected, and represented in the following data set.

$20$

$18$

$19$

$28$

$24$

$26$

$22$

$21$

$23$

$27$

$20$

$25$

$26$

$23$

$28$

$24$

Which of the following box and whisker plot resembles the given data set?

1. 
2. 

Q. The following box and whisker plot represents the weight of seven boys:

What percentage of boys weigh more than 80 kg?

1. $25\%$
2. $50\%$
3. $30\%$
4. $10\%$

Q. Choose the correct box and whiskers plot for the following data set.

$23$

$46$

$71$

$83$

$65$

$56$

$21$

$19$

$73$

$8$

$6$

1. 
2. 
3. None of the above

Q. Plot the box and whiskers graph for the following data, and comment on the spreadness of the given data set.

$52$

$54$

$56$

$68$

$54$

$78$

$97$

$34$

$22$

$65$

$82$

1. 
   Comment: $2^{\text{nd}}$ $25$% of the data points are tightly clamped.
2. 
   Comment: $3^{\text{rd}}$ $25$% of the data points are tightly clamped.

Q. Match the following for the even-numbered data set.

12

19

17

15

20

25

29

18

16

30

1. 30
2. 18.5
3. 16
4. 9

Q. The following two box and whiskers graphs show the prices of gadgets (in $\$$) in two different electronic stores.



Choose the correct option for the following two questions:

1. Which store has gadgets of a larger price range?
2. What is the median price of gadgets in each of the two stores?

1. 1. Store B has gadgets of larger price range.
   2. Median of store A and store B are $\$95$ and $\$90$ respectively.
2. 1. Store A has gadgets of larger price range.
   2. Median of store A and store B are $\$90$ and $\$95$ respectively.

Q. Which of the following option(s) is/are true for the given box and whiskers plot?

1. The lower quartile is $38.$
2. The upper quartile is $38.$
3. The median is $32.$
4. The inter-quartile range is $32.$

Q.
The following box and whiskers plot represents the temperature of a pond recorded by Henry for a particular time period:

Select the correct option(s):

1. Upper quartile temperature $={24}^{\circ }C$
2. Lower quartile temperature $={28}^{\circ }C$
3. Minimum temperature $={22}^{\circ }C$
4. Median temperature $={26}^{\circ }C$

Q. Choose the correct box and whiskers plot of the following data:
$2,3,8,6,4,15,18,12,22,26$

1. 
2. 
3. 
4. 

Q. The number of bikes sold in 16 days is given in the table below.


Which of the boxes and whisker plots resemble the given data set?

1. 
2. 
3. None of the above
4.