GKT101: General Knowledge for Teachers – Math

Use the following information to answer the next three exercises: The following data show the lengths of boats moored in a marina. The data are ordered from smallest to largest: $16 ; 17 ; 19 ; 20 ; 20 ; 21 ; 23 ; 24 ; 25 ; 25 ; 25 ; 26 ; 26 ; 27 ; 27 ; 27 ; 28 ; 29 ; 30 ; 32 ; 33 ; 33 ; 34 ; 35 ; 37 ; 39 ; 40$

Use the following information to answer the next three exercises: Sixty-five randomly selected car salespersons were asked the number of cars they generally sell in one week. Fourteen people answered that they generally sell three cars; nineteen generally sell four cars; twelve generally sell five cars; nine generally sell six cars; eleven generally sell seven cars. Calculate the following:

Use the following information to answer the next three exercises: State whether the data are symmetrical, skewed to the left, or skewed to the right.