Mean: To find mean you do the same as you would to find an average. Add up all of the numbers and divide by how many numbers are there. So, 8.3 + 4.5 + 6.2 + 9.6 + 4.3 + 11.2 + 5.9 + 9.7 + 10.5 = 70.2 Then divide by 9 since you have 9 numbers. 70.2 / 9 = 7.8
Median: To find median you set up the data from least to greatest and cross out one number from each side until you are left with one number as the middle number. 4.3, 4.5, 5.9, 6.2, 8.3, 9.6, 9.7, 10.5, 11.2 4.5, 5.9, 6.2, 8.3, 9.6, 9.7, 10.5 5.9, 6.2, 8.3, 9.6, 9.7 6.2, 8.3, 9.6 = 8.3 Mode: Mode is the most, meaning the number that appears the most in your set of data. In this case there is no mode because in your set there is no number that occurs more than once.
Step-by-step explanation: my trick that i do with these questions are to just fill in the x's with the different choices that they give you.
so... first try out 6. fill in every x with a 6. so now, x isn't x anymore, it's 6.
(8-6)=2
9 times 2= 18
3 times 6= 18
this means that x would equal 6
if that first one doesn't work, try out the other ones. but this one works, so we know we have the right answer. i hope this helps with this problem, and i hope it helps with other problems like this too.
