As part of a promotion for a new type of gluten free cookie, free samples are offered to shoppers in a local supermarket. The probability that a shopper will buy a pack of cookies after tasting the free sample is 0.23. Different shoppers can be regarded as independent trials. Let p-hat be the proportion of the shoppers that buy a pack of cookies after tasting a free sample. How large should your sample size be so that the standard deviation of is no more than 0.015?

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.

If a baby uses 15 diapers in 2 days how many diapers will the baby use in a year

Wich statement could be used to explain why the function h(x)= x^3 has an inverse relation that is also a function