In: Statistics and Probability
12) Given that sampes : 340 75 123 259 151
mean = sum of terms/Number of terms
= (340+75+123+259+151)/5
= 948/5
= 189.6
median = 151
Explanation
The median is the middle number in a sorted list of numbers. So, to find the median, we need to place the numbers in value order and find the middle number.
Ordering the data from least to greatest, we get:
75 123 151 259 340
So, the median is 151
Mode = no mode
Explanation
The mode of a set of data is the value in the set that occurs most often.
Ordering the data from least to greatest, we get:
75 123 151 259 340
Since each value occurs only once, there is no mode for this data set.
Midrange: 207.5
The minimum value of a data set (Min. Value): 75
The maximum value of a data set (Max. Value): 340
Midrange = (Min. Value + Max. Value) / 2
= (75 + 340) / 2
= 207.5
16. Given that samples : 37 46 32 32 33 25 17 27 21 25 33
Mean = sum of terms/number of terms
= (37+46+32+32+33+25+17+27+21+25+33)/11
= 328/11
= 29.8182
Median = 32
Explanation
The median is the middle number in a sorted list of numbers. So, to find the median, we need to place the numbers in value order and find the middle number.
Ordering the data from least to greatest, we get:
17 21 25 25 27 32 32 33 33 37 46
So, the median is 32 .
Mode = 25,32,33
Midrange: 31.5
The minimum value of a data set (Min. Value): 17
The maximum value of a data set (Max. Value): 46
Midrange = (Min. Value + Max. Value) / 2 = (17 + 46) / 2 = 31.5