Explain why surveying 100 people who are listed in the phone book may not be a random sample​

If eh = hg and hg=16, find the diameter of k

If a || b and e || f , what if the value of y ?

Fred has a spinner that is split into four equal sections: red, blue, green, and yellow. fred spun the spinner 688 times. which of the following would be a good estimate of the number of times the spinner lands on the green section? a. 269 b. 603 c. 344 d. 189