Here are the scores that Jenna has received on her seven quizzes: 16, 13, 20, 16, 12, 17, 18

What is the standard deviation rounded to the nearest tenth?

ITS NOT 2.8 OR 6.6 PLEASE HELP! ​

The level of co2 emissions, f(x), in metric tons, from the town of fairfax x years after they started recording is shown in the table below. x 2 4 6 8 10 f(x) 26,460 29,172.15 32,162.29 35,458.93 39,093.47 select the true statement.

Ihave trouble finding the nth term of a linear sequence

The mean of 10 values is 19. if further 5 values areincluded the mean becomes 20. what is the meanthese five additional values? a) 10b) 15c) 11d) 22