18, 22, 26, 11, 17, 18, 21, 24, 22, 26, 15 calculate the mean, median, mode, and range.

Step-by-step explanation:

Mean: 18+ 22+ 26+ 11 +17+18+ 21+ 24+ 22+26+ 15

=220 divided by 11

=20

Mode: 18, 22, 26, 11, 17, 18, 21, 24, 22, 26, 15

 put it in least from greatest

11,15,17,18,18,21,22,22,24,26,26

18, 22, and 26 are the modes

Median: put it in least from greatest

11,15,17,18,18,21,22,22,24,26,26

      21 is the median because its the middle number

Range: lowest to highest number and then subtract those two numbers

 11- 26= 15

15 is the RANGE!

i would say c is the best answer, hope it's right!

good luck! =)

cutie~

well if he bought them at 5 cedis each sold them at 7 cedis each then he would make a profit of 2 cedis of each book. if in total he made 150 cedis profit that means he sold 75 books. he lost 12 books at the start so that means he originally bought a total of 82 books.

step-by-step explanation: