Scores on a test are normally distributed with a mean of 81.2 and a standard deviation of 3.6. What is the probability of a randomly selected student scoring between 81.2 and 84.8?

If you have the following equation, 2/3x+5/6-x=2-3/4x what would you multiply each term by to get rid of all the fractions

Aline that intersects one of two parallel lines intersects the other also always sometimes never

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