Example 9 Constructing a frequency table for discrete numerical data, taking a small number of values The number of brothers and sisters (siblings) reported by each of the 30 students in Year 11 are as follows: 2 3 4 03 2304 1 00 1 2 3 256 1 1 1 02 02 1 1 453 Construct a table for these data showing both frequency and percentage frequency. Explanation 1 Find the maximum and the minimum values in the data set. Here the minimum is 0 and the maximum is 6. 2 Construct a table as shown, including all the values between the minimum and the maximum. 3 Count the number of 0s, 1s, 2s, etc. in the data set. For example, there are seven 1s. Record these values in the number column. 4 Add the frequencies to find the total. 5 Convert the frequencies to percentages, and record in the per cent (%) column. 6 Total the percentages and record. Solution Number of Frequency siblings Number % 0 6 20.0 1 7 23.3 2 6 20.0 5 16.7 4 3 10.0 5 2 6.7 6 1 3.3 Total 30 100.0 23 For example, percentage of 1s equals 7 x 100 = 23.3%. 30 b. Construct a frequency histogram using the frequency table created in part a. c. What can you analyse about the data distribution?

At the local high school, the parents were asked to provide the number of children in their family. Describe the type of data collected.     Bivariate and Categorical     Univariate and Categorical     Bivariate and Quantitative     Univariate and Quantitative

Please do not give solution in image format thanku A car salesman collected data on how many cars were sold at a dealership per day for two weeks. The results were as follows: 6, 7, 4, 3, 1, 2, 6, 6, 6, 7, 4, 4. Make a frequency table and then make a histogram based on that frequency table. What is the shape of the distribution? O Skewed to the right O Skewed to the left O Bimodal O Symmetrical

What value corresponds to the  30th  percentile?