frequency distribution

The mean of the frequency distribution shown is 18.5. Find the value of t . x 18 23 t 15 16 f 2 9 4 8 7 => 20 or 30.6 or 20.6 or 30..

The frequency distribution of the distance (in miles) covered by 20 randomly selected runners during a week is shown. Select the percentile graph for the data. Distance Number of runners 5.5 - 10.5 1 10.5 - 15.5 2 15.5 - 20.5 3 20.5 - 25.5 5 25.5 - 30.5 4 30.5 - 35.5 3 35.5 - 40..

The weekly wages of 65 employees at ABC company are recorded and a frequency distribution table is prepared. Wages ($) Number of employees 250 - 259.99 8 260 - 269.99 10 270 - 279.99 16 280 - 289.99 14 290 - 299.99 10 300 - 309.99 5 310 - 319.99 2 Find (i). The percentage of emp..

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 - 114.5 18 1..

The velocity (m/sec) of water flow in a pipe of 25 m diameter for consecutive days of a month are observed as: 1.5 1.5 1.6 1.4 1.5 1.4 1.6 1.4 1.5 1.3 1.4 1.3 1.4 1.5 1.7 1.6 1.5 1.5 1.5 1.4 1.3 1.5 1.5 1.6 1.7 1.5 1.4 1.4 1.4 1.5 Find the class boundaries for the last class by constructing an ungr..

On the annual day function of a school, chocolates were bought to be distributed among the students of 6, 7, 8 and 9 grades. The frequency table shows the number of chocolates that were distributed among the students of different grades. How many chocolates did the man..

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 both directions to meet..

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 both directions to meet the X..

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..

A survey of 47 selected distributions showed these number of days that the load took to reach the shipment from the day it was ordered. Days Frequency 1 - 4 12 5 - 8 8 9 - 12 15 13 - 16 5 17 - 20 7 Find the mean and the modal class of the data. => 9.39 and 9 or 9.39 and 9 - 12 o..