First Roll Second Roll
The probability of rolling a 6 on a
biased dice is
Next Qu
6
a) Complete the tree diagram.
6
not
6
b) Work out the probability of rolling
two sixes.
6
not
6
not
6

The distribution of a sample of the outside diameters of pvc pipes approximates a symmetrical, bell-shaped distribution. the arithmetic mean is 14.0 inches, and the standard deviation is 0.1 inches. about 68% of the outside diameters lie between what two amounts?