the range of 35,40,22,17,65,31,78,33 of
Answers
Answer:
61
Step-by-step explanation:
range is equal to the highest term from the given data-the lowest term from the given data.
now highest term here is 78 and the lowest term is 17
therefore the answer will become-->78-17
--》=61
Step-by-step explanation:
First thing we need tio do is to put the data in increasing order. This is needed to calculate the median:
30
,
31
,
32
,
33
,
34
,
35
,
35
,
36
,
37
,
39
Now we can calculate the parameters of this set:
Mean:
¯
x
=
30
+
31
+
32
+
33
+
34
+
35
+
35
+
36
+
37
+
39
10
=
342
10
=
34.2
Median
To calculate the median we need to take "middle" elements in an ordered set. If the set has an odd number of elements, then there is only one middle element, otherwise there are 2 such elements and median is the mean of those elements.
To find the middle elements we can cross out elements at both ends of the set until only 1 or 2 remain uncrossed:
30
,
31
,
32
,
33
,
34
,
35
,
35
,
36
,
37
,
39
30
,
31
,
32
,
33
,
34
,
35
,
35
,
36
,
37
,
39
30
,
31
,
32
,
33
,
34
,
35
,
35
,
36
,
37
,
39
30
,
31
,
32
,
33
,
34
,
35
,
35
,
36
,
37
,
39
There are 2 uncrossed elements, so their mean is the median:
M
e
=
34
+
35
2
=
69
2
=
34.5
Mode is the element which occurs the most times in the set. Here it is
35
.
Range is the difference between the smallest and the largest element:
r
=
39
−
30
=
9