Reading Stem and Leaf Plots

Q. Which measure of central tendency we can measure from the Stem Leaf representation of data?

1. Only Mode
2. Only Mean
3. Only Median
4. Mean, Mode, Median

Q. Outlier of the data set is/are .

Stem|	Leaf
0 |	1
5 |	4, 7, 7, 9
9 |	7

1. 1 and 97
2. 1
3. 97

Q. A cricket team recorded their batting averages as shown below:
Key: 2 | 0 = 20
What is the median of the above data?

1. 50
2. 45
3. 48
4. 40

Q. Thomas recorded the heights of 14 students as shown below.
Key: 5 | 0 = 50
What is the mode of the given data?

1. 52, 57, and 58
2. 52, 60, and 67
3. 55, 67, and 72
4. 52, 60, and 72

Q. Oliver records the time (in minutes) it takes him to get to school in the morning every day for 2 weeks.
His results are as shown.
Key: 2 | 8 = 28
On how many days was his commute time less than 31 minutes?

1. 12
2. 4
3. 2
4. 5

Q. This ordered stem and leaf plot shows the number of votes received by $12$ students running for student body president.

Stem|	Leaf
2 |	0, 2, 2, 8
3 |	2
4 |	2, 3, 4, 5
5 |	1, 4
9 |	8

Identify the outlier in the data set.

Q. This ordered stem and leaf plot shows the number of votes received by $12$ students running for student body president. How many students received more than $45$ votes?

Stem|	Leaf
2 |	0, 2, 2, 8
3 |	2
4 |	2, 3, 4, 5
5 |	1, 4
9 |	8

1. 3

Q. The data shows the number of people participating in the pie-eating competition on different days in two weeks. Select the correct option.

$\text{Stem}$	$\text{Leaf}$
$\text{2}$ $\text{3}$ $\text{4}$ $\text{9}$	$\text{1 3}$ $\text{0 1}$ $\text{0 8 9}$ $\text{9}$

1. 99 is an outlier because it is numerically distant from the remaining data set.
2. 31 is the center because it is in the middle row of the stem.
3. 49 is an outlier because it is the smallest value.
4. The spread is from 20 to 99.

Q. This ordered stem and leaf plot shows the number of votes received by $12$ students running for student body president.

Stem|	Leaf
2 |	0, 2, 2, 8
3 |	2
4 |	2, 3, 4, 5
5 |	1, 4
9 |	8

Find the median number of votes collected.

1. 42.5

Q. Find the mean of the following data set without the outlier.

Stem|	Leaf
0 |	1
1 |	4, 7, 8
8 |	6

1. 12.5

Q. Lizzie recorded the lengths of 16 caterpillars (in mm) as shown below.

Key: 0 | 1 = 1

How many of the caterpillars are shorter than 11 mm?

1. 13
2. 12
3. 11
4. 10

Q. David collected the ages of colleagues and recorded his results using a stem and leaf diagram.
Key: 2 | 3 = 23
What are the mode and median for the given data?

1. Mode = 40, Median = 40
2. Mode = 38, Median = 40
3. Mode = 40, Median = 38
4. Mode = 32, Median = 38