when you flip a biased coin the probability of getting a tail is 0.2. How many times would you expect to get tails if you flip the coin 180 times?

Step-by-step explanation:

T : H

2 : 10 = 12 [ 180/12 = 15]

30: 150

30/ 150 x 100 =  20 Percent chance of Tails

an advantage of the standard deviation is that it increases as the dispersion of the data increases. e. the interquartile range is preferred when the data are not skewed or no have outliers. an advantage of the standard deviation is that it uses all the observations in its computation.