MATHEMATICS

JAMB 2003 - Question 50

Mathematics 2003 JAMB Past Questions - Question 50: NUMBER: 1, 2, 3, 4, 5, 6FREQUENCY: 12, 20, X, 23, X-1, 28The result of tossing a fair dice 120 times is summarized above .Find the value of x

NUMBER: 1, 2, 3, 4, 5, 6FREQUENCY: 12, 20, X, 23, X-1, 28The result of tossing a fair dice 120 times is summarized above .Find the value of x
NUMBER: 1, 2, 3, 4, 5, 6FREQUENCY: 12, 20, X, 23, X-1, 28The result of tossing a fair dice 120 times is summarized above .Find the value of x
A:
B:
C:
D:
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Correct Answer

B

Explanation

To find the value of x, we can use the information given and the fact that the sum of the frequencies should equal the total number of tosses, which is 120.Sum of frequencies = 12 + 20 + X + 23 + (X - 1) + 28Simplifying the expression:12 + 20 + X + 23 + X - 1 + 28 = 120Combining like terms:2X + 82 = 120Subtracting 82 from both sides:2X = 120 - 822X = 38Dividing both sides by 2:X = 38 / 2X = 19Therefore, the value of x is 19.