Acompact disc player costs £50 puls 17.5% vat. calculate the total cozt of the compact disc player

1. the following set of data represents the number of waiting times in minutes from a random sample of 30 customers waiting for service at a department store. 4 5 7 10 11 11 12 12 13 15 15 17 17 17 17 17 18 20 20 21 22 22 23 24 25 27 27 31 31 32 a. determine the number of classes and class interval.

Can someone check if i did this right since i really want to make sure it’s correct. if you do you so much

Ineed to know the answer to this algebra question.