3 years ago

7

1 answer:

7 0

142 square rooted is between 11 and 12 is correct.
Because 142 square rooted is 11.92 which is between 11 and 12.
So the third choice is the answer.

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Usimov [2.4K]

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kumpel [21]

Answer: $\dfrac{60}{143}$

Step-by-step explanation:

Given, A class has five boys and nine girls.

Total students = 5+9=14

Number of ways to choose 6 students out of 14= $^{14}C_6$ [Using combinations]

Number of ways to choose 4 girls out of 6 (4 girls + 2 boys = 6 ) = $^{9}C_4\times\ ^{5}C_2$

If the teacher randomly picks six students, then the probability that he will pick exactly four girls:-

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