Ateacher wants to find out the average number of weekly reading hours of her students. she noted the number of reading hours of 5 of her students as shown below: 5, 3, 2, 1, 4 which measure of central tendency is most appropriate for this situation, and what is its value? either the mean or median; both are 3 either the mean or median; both are 2 only the median; 3 only the mean; 2

Unaware that 35% of the 10000 voters in his constituency support him, a politician decides to estimate his political strength. a sample of 200 voters shows that 40% support him. a. what is the population? b. what is the parameter of interest? state its value c. what is the statistics of the interest? state its value d. compare your answers in (b) and (c) is it surprising they are different? if the politician were to sample another 200 voters, which of the two numbers would most likely change? explain