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The table above represents the outcome of throwing a dice 100 times…

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The table above represents the outcome of throwing a dice 100 times. What is the probability of obtaining at least 4?

  • A. ½
  • B. 2/5
  • C. ¾
  • D. 1/5

QUICK ANSWER…

B

SOLUTION 

A dice is a small cube with points 1 to 6 on each of the six sides. An example of a dice is one of the pieces of cubes used to play the popular Ludo game.

Now, to find the probability of obtaining at least 4 in all throws, we will have to find the number of throws that yielded 4 and above (that is 4, 5, and 6)

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4 = 16

5 = 10

6 = 14

At least 4 = 16 + 10 + 14 = 40

Probability = number of required outcomes/numbers of possible outcomes

Probability of obtaining at least 4 = 40/100 = 4/10 = 2/5

Now for the right answer to the above question:

  1. Option A is incorrect.
  2. Option B is correct.
  3. C is incorrect.
  4. D is not the correct answer.

QUICK TIPS…

You may please note these/this:

  • “At least 4” means 4 and above

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/ culled from 2015 JAMB-UTME mathematics past question 10 /

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