KCET 2019 | Probability Question 30 | Mathematics

A man speaks truth 2 out of 3 times. He picks one of the natural numbers in the set $$S=\{1,2,3,4,5,6,7\}$$ and reports that it is even. The probability that is actually even is

$$\frac{1}{10}$$

$$\frac{2}{5}$$

$$\frac{3}{5}$$

$$\frac{1}{5}$$

KCET 2018

MCQ (Single Correct Answer)

-0

A bag contains 17 tickets numbered from 1 to 17. A ticket is drawn at random, then another ticket is drawn without replacing the first one. The probability that both the tickets may show even numbers is

$\frac{7}{34}$

$\frac{8}{17}$

$\frac{7}{16}$

$\frac{7}{17}$

KCET 2018

MCQ (Single Correct Answer)

-0

A flashlight has 10 batteries out of which 4 are dead. If 3 batteries are selected without replacement and tested, then the probability that all 3 are dead is

$\frac{1}{30}$

$\frac{2}{8}$

$\frac{1}{15}$

$\frac{1}{10}$

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