1. what are the mean median and mode and range of the data set given the altitude of the lakes in feet -11, -28, -17, -25, -28, -39, -6, and -46?
-46 , -39 , -28 , -28 , -25 , -17 , -11 , - 6
mean = sum / 8
median = average of -28 and - 25 = -26.5
mode , only one value happens twice
Omg thx @anonymous
To find the mean, median, mode, and range of the given data set, the first step is to arrange the numbers in numerical order:
-46, -39, -28, -28, -25, -17, -11, -6
Mean:
To find the mean, you need to calculate the average of the data set. To do so, add up all the numbers and divide the sum by the total number of values.
-46 + (-39) + (-28) + (-28) + (-25) + (-17) + (-11) + (-6) = -200
-200 / 8 = -25
Therefore, the mean of the data set is -25.
Median:
To find the median, you need to find the middle value of the data set. Since there are 8 numbers in the data set, the median will be the average of the two middle values (in case of an even number of values).
-46, -39, -28, -28, -25, -17, -11, -6
The two middle values are -28 and -25. So, the median is (-28 + -25) / 2 = -26.5
Therefore, the median of the data set is -26.5.
Mode:
The mode is the value that appears most frequently in the data set. In this case, there is no value that appears more than once, so there is no mode.
Therefore, there is no mode for this data set.
Range:
To find the range, subtract the lowest value from the highest value.
Highest value: -6
Lowest value: -46
Range = -6 - (-46) = 40
Therefore, the range of the data set is 40.
To find the mean, median, mode, and range of a given data set, follow these steps:
1. Sort the data set in ascending order: -46, -39, -28, -28, -25, -17, -11, -6.
2. Find the mean: Add up all the values and divide by the number of values in the set. In this case, (-46 + -39 + -28 + -28 + -25 + -17 + -11 + -6) / 8 = -23.5. Therefore, the mean is -23.5.
3. Find the median: Since the data set has an even number of values, take the average of the two middle values. In this case, the middle values are -28 and -25, so the median is (-28 + -25) / 2 = -26.5.
4. Find the mode: The mode is the value that appears most frequently in the data set. In this case, -28 appears twice, which is more than any other value. Therefore, the mode is -28.
5. Find the range: The range is the difference between the largest and smallest values in the data set. In this case, the largest value is -6 and the smallest value is -46, so the range is -6 - (-46) = 40.
Therefore, the mean is -23.5, the median is -26.5, the mode is -28, and the range is 40.