Math Statistics S3, 4 Caltec S.3

STATISTICS Use the grouped frequency distribution table below to answer the question below. (a) Complete the frequency column. (b) Calculate the mode, median and mean. c) Draw the histogram for the above given data The table below shows the ages of patients who visited Nsambya Hospital during the month of April. Use the table, To calculate the median. to draw up a frequency distribution for the ages of patients and hence calculate the mean using an assumed mean of 35. (c)_state the modal age class of the patients. 3. The table below shows the ages of a sample of 80 voters in Namagunga B polling station. (a).(i) State the class interval (ii). Calculate the mean mark using a working mean of 37. (b).(i). Draw a histogram to represent the data. (ii). Estimate the mode from your histogram (c). Calculate the median. 4. Draw a cumulative frequency curve for the following grouped frequency distribution of life-span in a dynasty. (b) Use your curve to estimate the median life span (c) Calculate the mean of the life span. 5. The table below shows the marks obtained in an economics test marked out of 60 by 40 students. 25 32 43 52 20 29 34 30 42 52 32 31 27 25 22 33 36 34 33 37 42 40 44 46 44 30 20 39 42 45 41 30 50 49 40 37 35 31 28 22 (a) From a frequency distribution table with equal class boundary beginning with 20 - 24. (b) Use the frequency distribution table; (i) to calculate the mean work using assumed mean of 42. (ii) to draw a histogram and use it to estimate the mode of distribution. 6. The table below shows marks of 30 students scored in mathematics test marked out of 60. (4 marks) …