Question

6. The results of an IQ test of a group of students in a certain college were taken and are presented in a frequency distribution. Classes f 70-75 2 76-81 8 82-87 19 88-93 21 94-99 28 100-105 38 106-111 15 112-117 9 Required: Using the frequency distribution above, determine the following: a) size of the class interval; b) median class; c) lower boundary of the median class; d) midpoint of the median class; e) upper limit of the median class; f) modal class; g) lower limit of the modal class; h) number of students with an IQ greater than 99.5; i) midpoint of the modal class. Compute the value of the mean, median, and mode.

          6. The results of an IQ test of a group of students in a certain college were taken and are presented in a frequency distribution.
              Classes                                 f
               70-75                                    2
               76-81                                    8
               82-87                                   19
               88-93                                   21
               94-99                                   28
              100-105                                38
              106-111                                15
              112-117                                  9
Required:
Using the frequency distribution above, determine the following: a) size of the class interval; b) median class; c) lower boundary of the median class; d) midpoint of the median class; e) upper limit of the median class; f) modal class; g) lower limit of the modal class; h) number of students with an IQ greater than 99.5; i) midpoint of the modal class.
Compute the value of the mean, median, and mode.

Added by Katelyn B.

Question

Please give Ace some feedback