The city of Raleigh has 7100 registered voters. There are two candidates for city council in an upcoming election: Brown and Feliz. The day before the election, a telephone poll of 400 randomly selected registered voters was conducted. 213 said they'd vote for Brown, 170 said they'd vote for Feliz, and 17 were undecided. i) What is the sample statistic for the proportion of voters surveyed who said they'd vote for Brown? Note: (Enter your answer as a decimal rounded to 4 places if necessary)
Permutations and Combinations
If there are 5 dishes, they can be relished in any order at a time. In permutation, it should be in a particular order. In combination, the order does not matter. Take 3 letters a, b, and c. The possible ways of pairing any two letters are ab, bc, ac, ba, cb and ca. It is in a particular order. So, this can be called the permutation of a, b, and c. But if the order does not matter then ab is the same as ba. Similarly, bc is the same as cb and ac is the same as ca. Here the list has ab, bc, and ac alone. This can be called the combination of a, b, and c.
Counting Theory
The fundamental counting principle is a rule that is used to count the total number of possible outcomes in a given situation.
The city of Raleigh has 7100 registered voters. There are two candidates for city council in an upcoming election: Brown and Feliz. The day before the election, a telephone poll of 400 randomly selected registered voters was conducted. 213 said they'd vote for Brown, 170 said they'd vote for Feliz, and 17 were undecided.
i) What is the sample statistic for the proportion of voters surveyed who said they'd vote for Brown? Note: (Enter your answer as a decimal rounded to 4 places if necessary)
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