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If X, Y can take values from the set (1, 2, 3 ,4), find the...

Mathematics
JAMB 2018

If X, Y can take values from the set (1, 2, 3 ,4), find the probability that the product of X and Y is not greater than 6

  • A. \(\frac{5}{8}\)
  • B. \(\frac{5}{16}\)
  • C. \(\frac{1}{2}\)
  • D. \(\frac{3}{8}\)
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Correct Answer: Option A
Explanation
x 1 2 3 4
1 1* 2* 3* 4*
2 2* 4* 6* 8
3 3* 6* 9 12
4 4* 8 12 16

The numbers that are not greater than 6 are either less than 6 or equal to 6.

P(picking a number not greater than 6) = \(\frac{10}{16}\)

= \(\frac{5}{8}\)

There is an explanation video available below.


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Explanation Video

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Post UTME Past Questions Agent
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Post-UTME Past Questions - Original materials are available here - Download PDF for your school of choice + 1 year SMS alerts
WAEC and NECO CBT Software for Computers and Laptops - Candidates, Schools, Centres, Resellers - 100% Offline -Download Now
WAEC and NECO CBT Software for Computers and Laptops - Candidates, Schools, Centres, Resellers - 100% Offline -Download Now
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