constructing a frequency distribution table

The students of Environmental studies collected the data of the life span of Zebras from the zoological authorities which are as follows. 20, 12, 19, 22, 28, 30, 17, 25, 10, 23, 16, 18, 21, 32, 15, 14, 8, 22, 11, 13, 18, 20, 21, 19, 19 Find the average life span of a Zebra by constructing..

The scores of 20 students in a quiz are collected and shown in the table: Construct a frequency distribution and a histogram for the data. => Figure - A or Figure - B..

The daily sales of books in a book stall for 20 consecutive days are: 20 15 32 18 40 9 12 19 22 28 31 54 42 39 45 16 60 38 44 25 Find the class limit in which the sales are maximum by constructing a frequency distribution table with 5 classes. => 32 - 42 or 2..

The daily water consumption (in m 3 ) of 25 different textile mills recorded by the Water Authority is shown. 2400 2700 1100 1830 2200 2250 1400 1720 2620 1580 1640 2100 1360 1750 2600 1440 1900 2520 1700 1210 2300 2050 1500 1990 2320 Identify the frequency of each class by construct..

Frequency Distribution - 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 call..

A frequency distribution of the duration of telephone calls monitored at the local telephone exchange are shown. Length of calls(minutes) Number of calls 2.5 - 4.5 10 4.5 - 6.5 15 6.5 - 8.5 30 8.5 - 10.5 15 Construct a frequency polygon and ogive for the data. => ..

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 frequency distribution table gives t..

The frequency distribution of the highest temperatures (in °F) in 50 states during a season is shown. Find the percentile rank for a temperature of 117.5°F by constructing a percentile graph. Temperatures Number of states 99.5 - 104.5 2 104.5 - 109.5 8 109.5 - ..

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..

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