frequency distribution table

A teacher gave a test to a class of 26 students. The maximum mark is 5. The marks obtained by the pupils are: Such data as above is called ungrouped (or raw) data. We may arrange the marks in ascending or descending order. The data so represented is called an array. The difference between the great..

On the annual day function of a school, 200 chocolates were brought to be distributed among the students of 6 th , 7 th , 8 th and 9 th grades. The frequency table shows the number of chocolates that were distributed among the students of different grades. Ho..

Cumulative Frequency Distribution - Cumulative frequency is obtained by adding the frequency of a class interval and the frequencies of the preceding intervals upto that class interval. This is explained by an example below. The following frequ..

Sixty eight randomly selected refrigerators were tested to determine their life span (in years). The relevant frequency distribution is as shown. Lifetime of refrigerators Frequency 10.5 - 14.5 6 14.5 - 18.5 12 18.5 - 22.5 25 22.5 - 26.5 17 26.5 - 30.5 8 Find the varia..

Mr. Craig made a frequency distribution for the scores secured by his students in a test. Score Number of students Below 75 9 76 - 80 19 81 - 85 3 86 - 90 5 91 - 95 3 96 - 100 1 How many students got more than 85 points? => 12 or 19 or 9 or 5..

The frequency distribution shown here illustrates the number of goals scored by country X in the last 30 matches. Number of goals scored Number of matches 0 12 1 8 2 2 3 3 4 or more 5 If a match is selected at random, then what is the probability that the number of goals scored ..

Frequency Polygon - In a frequency distribution, the mid-value of each class is obtained. Then on the graph paper, the frequency is plotted against the corresponding mid-value. These points are joined by straight lines. These straight lines may be extended in..

The data represents the lengths (recorded to the nearest millimeter) of 40 leaves picked for an experiment. Form an appropriate frequency distribution. Find chi-square test value and check if the variable shown in the frequency distribution is normally d..

Cumulative frequency is obtained by adding the frequency of a class interval and the frequencies of the preceding intervals upto that class interva..

The distribution of the ages of the members of a colony is as follows : Age Frequency 0 - 20 35 21 - 30 15 31 - 40 20 41 - 50 25 51 - 60 15 61 - up 10 If a person is selected at random, then find the probability that his/her age is less than 30 years. => 5 12 or 1 8 or 7 12 or 7..