Hi, can you please explain part e and also check my other answers

(a) (1 mark) Toss a coin 11 times and record the random variable X = the number of Heads in the table below, as well as the relative frequency (1/2 mark for each correct frequency) Number relative frequency X=1 6 0.55 X=0 0.45 (b) (3 marks) Work out the sample mean, sample variance and sample standard deviation sample mean 5.5 sample variance 0.5 sample standard deviation 0.707106781 (c) (2 marks) from your research on the internet, or using the lecture notes, come up with one other measure of volatility. Do you think the measure of volatility you use is closer in concept to the variance or the sample standard deviation? Why? alternative volatility Coefficient of variation what volatility is closest to and why Standard Deviation. Since Standard deviation does not include a unit and is more a ratio. (d) (2 marks) Assuming the coin is unbiased, work out the theoretical mean and standard deviation. mean 0.5 standard deviation (e) (2 mark) Using your sample in part (a) work out the average deviation of each value of X from the true mean. Write down two meanings of 'standard deviation' (1/2 mark each) average deviation meaning 1 meaning 2