The stem and leaf plot below shows the total number of points different gymnast earned in a gymnastics competition. How many gymnast scored less than 50 point.
Stem | leaf
6. | 1 2 2 6
5. | 1 4 6 8 9
4. | 1 2 2 7 8 9
3. | 6 9
A. 4
B. 6
C. 7
D. 8
The stem and leaf plot shows that there are 4 gymnasts who scored less than 40 points (3 gymnasts with a score in the 30s and 1 gymnast with a score in the 20s). There are also 3 gymnasts who scored exactly 40 points. Therefore, the total number of gymnasts who scored less than 50 points is 4 + 3 = 7.
The answer is C. 7.
The stem-and-leaf plot shows the ages of residents of retirement home. How many residents are older than 80
It's difficult to answer this question without being able to see the stem-and-leaf plot. However, here's how you can use a stem-and-leaf plot to answer this type of question:
1. Find the stem that represents 80. For example, if the plot shows stems for ages 70, 80, 90, and 100, then the stem for 80 is 8.
2. Look at the leaves that are attached to the stem for 80. These represent the ages of residents who are in their 80s.
3. Count the number of leaves that are attached to the stem for 80. This will tell you how many residents are in their 80s.
4. If the question is asking how many residents are older than 80, you'll need to add up the number of residents who are in their 90s and any other age groups that are older than 80. You can use the same process as above to find the number of residents in each age group, and then add them up.
For example, if there are 7 residents in their 80s and 5 residents in their 90s, then there are 7 + 5 = 12 residents who are older than 80.
Without seeing the specific stem-and-leaf plot in question, it's impossible to give a specific answer to this question.
To determine the number of gymnasts who scored less than 50 points, we need to look at the stem and leaf plot and identify the stems and leaves that represent scores less than 50.
Looking at the stem and leaf plot, we can see that the stems are 6, 5, 4, and 3.
For the stems 6, 5, and 4, there are no leaves that represent scores less than 50. The leaves for these stems are all greater than or equal to 50.
However, for the stem 3, we can see that there are two leaves that represent scores less than 50: 6 and 9.
So, there are two gymnasts who scored less than 50 points.
Therefore, the correct answer is:
A. 2