MHT CET 2021 24th September Evening Shift | Probability Question 108 | Mathematics

A fair coin is tossed for a fixed number of times. If probability of getting 7 heads is equal to probability of getting 9 heads, then probability of getting 2 heads is

$$\frac{1}{15}$$

$$\frac{15}{2^{13}}$$

$$\frac{15}{2^8}$$

$$\frac{2}{15}$$

MHT CET 2021 24th September Morning Shift

MCQ (Single Correct Answer)

-0

If the probability distribution function of a random variable X is given as

$$\mathrm{X=x_i}$$	$$-2$$	$$-1$$	0	1	2
$$\mathrm{P(X=x_i)}$$	0.2	0.3	0.15	0.25	0.1

Then F(0) is equal to

$$\mathrm{P}(\mathrm{X}>0)$$

$$\mathrm{1-P(X>0)}$$

$$1-\mathrm{P}(\mathrm{X}<0)$$

$$\mathrm{P}(\mathrm{X}<0)$$

MHT CET 2021 24th September Morning Shift

MCQ (Single Correct Answer)

-0

If $$\mathrm{P}(\mathrm{A})=\frac{3}{10}, \mathrm{P}(\mathrm{B})=\frac{2}{5}, \mathrm{P}(\mathrm{A} \cup \mathrm{B})=\frac{3}{5}$$, then $$\mathrm{P}(\mathrm{A} / \mathrm{B}) \times \mathrm{P}(\mathrm{B} / \mathrm{A})=$$

$$\frac{1}{3}$$

$$\frac{1}{12}$$

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

$$\frac{1}{4}$$

MHT CET 2021 24th September Morning Shift

MCQ (Single Correct Answer)

-0

The probability distribution of a discrete random variable X is

$$\mathrm{X}$$	1	2	3	4	5	6
$$\mathrm{P(X)}$$	K	2K	3K	4K	5K	6K

Find the value of $$\mathrm{P}(2<\mathrm{X}<6)$$

$$\frac{4}{21}$$

$$\frac{1}{21}$$

$$\frac{10}{21}$$

$$\frac{4}{7}$$

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