Question

consisting of 30 software engineers and 10 hardware engineers. B) No; no. The sample is not random because not all employees have the same O Yes;i yes. The sample is ra D) No; yes. The sample is not random because not all employees have the same chance of selected. It is not a simple random sample because some samples are not possible, such sample consisting of 30 software engineers and 10 hardware engineers. ndom because all employees have the same chance of being selected, It is a simple random sample because all samples of size 40 have the same cha being selected. selected. It is a simple random sample because all samples of size 40 have the same cha being selected. Construct the cumulative frequency distribution that corresponds to the given frequency distributio Number Speed of cars 0-29 4 30-59 16 60-8960 90-119 20 A) B) Cumulative Cumulative 0-29 Less than 30 100 Less than 60 80 Less than 90 82 Less than120 4 30-59 20 60-8980 119 100 C) D) Cumulative Cumulative Speed Frequency Speed Frequency Less than 30 Less than 60 20 Less than 90 80 Less than 120 100 Less than 30 0.04 Less than 60 0.20 Less than 90 0.80 Less than120 1.00

Answer 1

Given Here we are given inclusive type distribution i.e both upper limit and lower limit of class are included. We are asked the less than type frequency distribution so option (c) is correct In this equation asked same so option (b) is correct Here Frequency distribution for income class is given and asked for relative frequency distribution Relative Frequency = Frequency of that class/Total Frequency so option (B) is correct In this problem we are given systolic Blood pressure classes and corresponding relative frequency From Graph we can prepare table so asked the relative frequency of 110 - 119 which is 35% so option (A) is correct