Which type of correlation would you expect to see between the cost of roses and the number of roses sold?

a) positive correlation

b) negative correlation

c) no correlation

What is the frequency of the sinusoidal graph?

Anyone? 15m is what percent of 60m; 3m; 30m; 1.5 km?

60 musicians applied for a job at a music school. 14 of the musicians play both guitar and drums, 28 play drums, 18 play the guitar. what is the probability that the applicant who gets the job plays drums or guitar?