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Data set A and data set B contain 5 numbers. If the mean of the data set A is equal to the mean of data set B, what is the value of x?77858695

Data Set A And Data Set B Contain 5 Numbers If The Mean Of The Data Set A Is Equal To The Mean Of Data Set B What Is The Value Of X77858695 class=

Sagot :

Explanation:

Data set A : 72, 73, 73, 76, 76

Data Set B: 61, 64, 74, 85, x

Step 1: Find the mean value of data set A

Mean = Average

Mean = sum of the number / n

Sum of data Set A = 72 + 73 + 73 + 76 + 76

sum = 370

n = frequency of the set

n = 5

Mean = 370 / 5

Mean = 74

Since mean Data Set A is equal to mean of Data set B

Recall, mean = sum / n

Data set B: 61, 64, 74, 85, x

mean = 74; find x

74 = 61 + 64 + 74 + 85 + x / 5

74 = 284 + x / 5

Cross multiply

74 * 5 = 284 + x

370 = 284 + x

Isolate x

370 - 284 = x

x = 86

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