The mean of the following numbers 2.3,
2.1, 0.75, 0.25, 2.8, 0.9,
and 15 is____
A. 1.6375
B. 1.7635
C. 1.5376
D. 1.6735
To find the mean of the given numbers, you need to add them up and divide by the total number of values.
2.3 + 2.1 + 0.75 + 0.25 + 2.8 + 0.9 + 15 = 24.1
There are 7 values, so divide 24.1 by 7:
24.1/7 = 3.4428571428571427
Rounded to four decimal places, the mean is approximately 3.4429.
None of the given options match this mean, so the correct answer is not provided.
To find the mean of a set of numbers, you need to add up all the numbers and then divide the sum by the total number of numbers.
So, let's calculate the mean step-by-step using the given numbers: 2.3, 2.1, 0.75, 0.25, 2.8, 0.9, and 15.
1. Add up all the numbers:
2.3 + 2.1 + 0.75 + 0.25 + 2.8 + 0.9 + 15 = 24.1
2. Determine the total number of numbers:
There are 7 numbers in the set.
3. Divide the sum by the total number of numbers:
24.1 ÷ 7 = 3.442857143
4. Round the mean to the nearest ten-thousandth (4 decimal places):
The mean of the given numbers is approximately 3.4429.
Therefore, the correct answer is not listed among the options provided.