Answer Happy

Next question In order to conduct an experiment, 4 subjects are randomly selected from a group of 52 subjects. How many different groups of 4 subjects are possible? The number of possible different groups is (Type a whole number.)
Next question The ages (in years) of a random sample of shoppers at a gaming store are shown. Determine the range, mean, variance, and standard deviation of the sample data set 12, 20, 23, 14, 13, 18, 19, 16, 15, 18 The range is (Simplify your answer.) The mean is (Simplify your answer. Round to the nearest tenth as needed.) The variance is (Simplify your answer. Round to the nearest tenth as needed.) The standard deviation is (Simplify your answer. Round to the nearest tenth as needed.) CLETE
In a survey of U.S. adults with a sample size of 2001, 314 said Franklin Roosevelt was the best president since World War Two US adults are selected at random from this sample without replacement Complete parts (a) though ( (a) Find the probability that both adults say Franklin Roosevelt was the best president since World War The probability that both adults say Franklin Roosevelt was the best president since World War I is (Round to three decimal places as needed.) (b) Find the probability that neither adut says Franklin Roosevell was the best president since World War I The probability that neither adult says Frankin Roosevelt was the best president since World War (Round to three decimal places as needed) (c) Find the probability that at least one of the two adults says Frankin Roosevelt was the best president since World War I The probability that at least one of the two adults says Franklin Roosevelt was the best president since World War (Round to three decimal places as needed) (d) Which of the events can be considered unusual? Explain. Select all that apply DDDD The event in part (b) is unusual because its probability is less than or equal to 0.05 The event in part (e) is unusual because its probability is less than or equal to 0.05 None of these events are unusual The event in part (c) is unusual because its probability is less than or equal to 0.05