(1 point) (Hypothetical.) We are given a weighted coin (with one side heads, one side tails), and we want to estimate the unknown probability p that it will land heads. We flip the coin 1000 times and it happens to land heads 406 times. Give answers in decimal form, rounded to four decimal places (or more). We estimate the chance this coin will land on heads to be . Attach a give-or-take value to this estimate. (That is, estimate the standard error.) For a 92% confidence interval, about how many standard errors should be added to and subtracted from the estimate? Set up an approximate 92% confidence interval for the probability the coin will land heads.

Jeffery conducted a survey in his school and found that 30 of the 50 eighth grade students' favorite subject is mathematics. based on the results, jeffery concluded that out of the 200 students in his school, 120 students' favorite subject is mathematics. select the statement that is true about jeffery's conclusion. a. jeffery's conclusion is not valid because the sample was biased since only 200 students were surveyed. b. jeffery's conclusion is valid because the sample was random since all of the students were eighth grade students. c. jeffery's conclusion is valid because the sample was random. d. jeffery's conclusion is not valid because the sample was biased since all of the students were eighth grade students.

Which statement best explains why ben uses the width hi to create the arc at j from point k

What is the result of the following division?