Lisa and jen are each reading a different 250-page book consisting of 10 chapters. which statistics would be in determining whose book shows the greater variability in the chapter length? check all that apply.(may be more than one or all) a. the median of the chapter lengths in each book b. the mean of the chapter lengths in each book c. the interquartile range of the chapter lengths in each book d. the range of chapter lengths in each book

17 in long 1.3 ft wide and 8in high what is the volume

Two cyclists 84 miles apart start riding toward each other at the samen time. one cycles 2 times as fast as the other. if they meet 4 hours later what is the speed (in miles) of the faster cyclists

Ascientist wants to use a model to present the results of his detailed scientific investigation. why would a model be useful? a )because the model makes the concepts easier to understand b) because the model is easy to put together and to use c) because the model prevents other scientists from asking questions d) because the model requires the audience to pay full attention to it i don't know what to choose because between a and d a is much more likely than d because it only wants to get the attention of the audience. i'm confuse.