Answer:
5.42
Step-by-step explanation:
From the question given, we obtained the following information:
Mean of six numbers = 4.7
Mean of four numbers = 6.5
We can obtain the mean of the ten numbers by first obtaining the sum of the first six numbers and the sum of the four different numbers. This can be achieved by doing the following:
For the six numbers,
Mean = sum of numbers / total numbers
Mean = 4.7
Total number = 6
Sum of the numbers = mean x total number
Sum of the numbers = 4.7 x 6 = 28.2
For the four numbers,
Mean = sum of numbers / total numbers
Mean = 6.5
Total number = 4
Sum of the numbers = mean x total number
Sum of the numbers = 6.5 x 4 = 26
Now we can obtain the mean of the ten numbers as follows:
Sum of the numbers = 28.2 + 26 = 54.2
Total numbers = 10
Mean = sum of numbers / total numbers
Mean = 54.2/10
Mean = 5.42
