The Marks obtained by 11 students in mathematics test are follows :-
34,37,30,38,50,34,34,38,36,45,31.
Find the value of (a) range (b) arithmetic mean (c) median (d) mode
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Answers
Answer:
The values area) Range=20b) Arithmetic Mean=33.5c) Median=36d) Mode=34
Step-by-step explanation:
Given that the marks scored by 11 students in mathematics test are below :
34,37,30,38,50,34,34,38,36,45,31
To find the a) range b) arithmetic mean c) median d) mode
a) Range
First arrange the given data from least to greatest
That is in ascending order
30,31,34,34,34,36,37,38,45,50
Range is the difference of greatest value from the least
Range =50-30
Therefore range =20
b) Arithmetic meanArithmetic mean=\frac{sum of the data}{total number of data}=totalnumberofdatasumofthedata
=\frac{30+31+34+34+34+36+37+38+45+50}{11}=1130+31+34+34+34+36+37+38+45+50
=\frac{369}{11}=11369
=33.5=33.5
Therefore Arithmetic mean=33.5
c) Median
Median is the middle value from the given data set
Therefore median=36
d) Mode
Mode is the repeating value in the given data set
Therefore mode=34
Answer:
The correct answers are
1. Range 20
2. Mean 33.5
3. median=36
4. Mode=34
Step-by-step explanation:
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