Name                          Major                         …

Name                          Major                            Age Richard                   Nursing                           19 Sara                         Psychology                     18 Jordan                     Chemistry                       21 Mike                        Nursing                           18 Liz                            Nursing                           21 Nicole                      Psychology                     20 Pam                         Nursing                           21 Andrea                    History                             19 The above variables, name, major and age are all qualitative variables.

Question 1.6   Compare the ichthyosaurus fossil with t…

Question 1.6   Compare the ichthyosaurus fossil with the skeleton of the crocodile and write down one similarity and one difference you can see between them. Ichthyosaurus fossil Crocodile skeleton Click on the button below to open the picture of the fossil and skeleton. (2)

Essay grade                                Frequency A     …

Essay grade                                Frequency A                                                     2 B                                                     6 C                                                      8 D                                                      4 F                                                        2 Total                                                 22 According to the above data, the frequency of students who got a grade B is = 6

Twenty people, including yourself, are to measure the width…

Twenty people, including yourself, are to measure the width of a room to the tenth of millimeter. Assume that everyone uses the same well calibrated measuring device such as a tape measure. All measurements are not likely to be exactly the same; some will be higher than the true value and some lower. These differences represent  random errors. Can the process of averaging all the twenty measurements also help reduce reduce any systematic errors? The answer is “no”.