Use a calculator to find the mean and standard deviation of the data. Round to the nearest tenth.
6,7,19,7,18,7
A. mean = 9; standard deviation = 26.4
B. mean = 11.9; standard deviation = 26.4
C. mean = 10.6; standard deviation = 6.1
D. mean = 9; standard deviation = 5.1
For the mean I got 48.2 ,could you help me solve this step by step?
the mean is when you add up all of the numbers and divide the sum by how many numbers are given.
6+7+19+7+18+7= 64
there were 6 numbers given, so now we divide:
64/6= 10.66666667
which rounded out is 10.6, therefore, your answer is C :)
The mean is the average, so that is when you add all the numbers together and the divide that sum by the number of numbers you had. So, 6+7+19+7+18+7= 64. And you have 6 numbers, then divide 64/6= 10.6666, which is about 10.6. So the answer C!
Hope it helped :)
Also, when I took this course, my teacher told me to go to google and use a standard deviation calculator to find the standard deviation.
You just type in the number sequence and I got:
6.08824003031
which rounded out is 6.1
thank you!!
To find the mean of a set of data, you need to calculate the sum of all the numbers in the set and then divide that sum by the total count of numbers in the set.
Let's calculate the mean step by step for the given set of numbers: 6, 7, 19, 7, 18, and 7.
Step 1: Add all the numbers together: 6 + 7 + 19 + 7 + 18 + 7 = 64.
Step 2: Divide the sum by the total count of numbers in the set: 64 รท 6 = 10.7 (rounded to the nearest tenth).
Therefore, the mean of the given data set is 10.7.
Now, let's move on to finding the standard deviation.