Stem-and-leaf plot
The possession of ideas by multiple students is collective and distributed among them, suggesting a shared ownership rather than individual possession. This shared pool of ideas often leads to collaboration and the exchange of knowledge within a group of students.
circle graph
Histogram
Pie Chart
The sample size is likely to be too small.
Pie Chart
Frequency is how often something occurs. Frequency distribution is how often something occurs within a group of separate categories or ranges. Say you had a list of exam scores from a class of students. You might want to find out how many people got between 0% and 10%, how many got between 11% and 20%, how many got between 21% and 30%, and so on. All you are interested in is the how many as compared to who actually got the scores. What you would be doing is creating a frequency distribution table. You would be finding out how many people got results in the various ranges, or how the frequency of results are distributed across these ranges.
The answer will depend on the location and ages of the students.
The frequency of meetings at a Kumon Learning Center typically depends on the individual student's schedule and needs, but most students attend two to three times a week. Each session usually lasts about 30 to 60 minutes, allowing students to work on math and reading skills at their own pace. Parents can choose the frequency based on their child's progress and goals.
about 25
Some common challenges students face when solving Doppler effect problems include understanding the concept of frequency shift, correctly applying the formula for calculating the observed frequency, and accounting for the relative motion of the source and observer. Additionally, students may struggle with interpreting the direction of the frequency shift based on the motion of the source and observer.
http://wiki.answers.com/Q/How_many_students_are_there_in_the_world_and_how_are_they_distributed_between_high-school_and_upper_education"