A cab driver got the rating as feedback from 20 customers on a given day which are as follows: 7 9 8 x 6 9 7 5 9 10 7 8 9 8 8 7 10 6 6 9. If the relative frequency of rating 7 is 0.25, then what is the value of x ?
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Answer:
X=7
Step-by-step explanation:
Given: 7, 9, 8, x, 6, 9, 7, 5, 9, 10, 7, 8, 9, 8, 8, 7, 10, 6, 6, 9.
it is the data given in the question.
Total no. of feedbacks= 20
Relative Frequency= Frequency of given Number/ total counts
so, 0.25= frequency of 7/20
0.25×20=frequency of 7
5= Frequency of 7
So, in the given data no. of 7 are 4.
so, X=7.
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