Which of these is an example of a random sample? A.
Every twentieth caller to an independent radio station receives tickets to a concert.

B.
A phone survey is conducted using twenty names randomly taken from the phone book.

C.
Customers buying a new cell phone are surveyed about cell phone plans.

D.
A phone plan company surveys people on the beach to see how well they are receiving service, and uses this information in future advertising.

An empty bucket is placed under a faucet dripping at a constant rate of 4 milliliters per minute. with the given information, which of these statements is a reasonable conclusion? a there will be 24 milliliters of water in the bucket after 16 hour. b there will be 60 milliliters of water in the bucket after 14 hour. c there will be 160 milliliters of water in the bucket after 20 minutes. d there will be 100 milliliters of water in the bucket after 40 minutes.

Asailor is looking at a kite. if he is looking at the kite at an angle of elevation of 36and the distance from the boat to the point where the kite is directly overhead is 40 feet, how high is the kite?

Alogical argument that is presented in graphical form using boxes and arrows is called?