Statistics

1. Suppose that a box contains 6 cameras and that 5 of them are defective. A sample of 2 cameras is selected at random. Define the random variable x as the number of defective cameras in the sample. Write the probability distribution for x X P(x) What is the expected value of x? 2. Complete the following statements. In general, 6 of the values in a data set lie at or below the median. % of the values in a data set lie at or below the third quartile (Q3). If a sample consists of 1800 test scores, of them would be at or below the second quartile (Q2). If a sample consists of 1800 test scores, of them would be at or above the first quartile (Q1). 3. Complete the following statements. In general, % of the values in a data set lie at or below the median. % of the values in a data set lie at or below the first quartile (Q1). If a sample consists of 500 test scores, of them would be at or below the second quartile (Q2). If a sample consists of 500 test scores, of them would be at or above the third quartile (Q3)