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a_sh-v [17]
2 years ago
12

Suppose you have a data set that includes the values 20, 30, and 50. If you add a fourth value to this data set, and after doing

that the mean of the data set is 50, what was the value that you added? a. -10 c. 50 b. 40 d. 100 Please select the best answer from the choices provided A B C D
Mathematics
1 answer:
olya-2409 [2.1K]2 years ago
8 0

Answer:

D. 100

Step-by-step explanation:

Mean = Sum of all numbers divided by the count of all numbers

Mean = 50

Let say that the sum of all numbers = X

50 = X / 4

200 = X

X = (20+30+50) + The 4th Value

200 = 100 + 4th Value

The 4th Value = 100

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Answer:

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Step-by-step explanation:

(1)

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(2)

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(3)

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