Worksheet 6 1. Determine which rational number is greater in each case. 5 - 3 (0) 8 7 (ii) 2 8 3' 9 14 -6 8 19 (iii) (iv) 3 7 3 - 6 - 3 -5 -7 5 (v ) (vi) - 13 - 21 11 – 8​

The brain volumes (cm cubed) of 50 brains vary from a low of 904 cm cubed to a high of 1488 cm cubed. use the range rule of thumb to estimate the standard deviation s and compare the result to the exact standard deviation of 175.5 cm cubed, assuming the estimate is accurate if it is within 15 cm cubed