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1
MHT CET 2021 20th September Evening Shift
MCQ (Single Correct Answer)
+2
-0

If the sum of mean and variance of a binomial distribution for 5 trials is 1.8, then probability of a success is

A
0.2
B
0.6
C
0.4
D
0.8
2
MHT CET 2021 20th September Evening Shift
MCQ (Single Correct Answer)
+2
-0

Two unbiased dice are thrown. Then the probability that neither a doublet nor a total of 10 will appear is

A
$$\frac{1}{12}$$
B
$$\frac{1}{36}$$
C
$$\frac{2}{9}$$
D
$$\frac{7}{9}$$
3
MHT CET 2021 20th September Morning Shift
MCQ (Single Correct Answer)
+2
-0

Two dice are rolled simultaneously. The probability that the sum of the two numbers on the dice is a prime number, is

A
$$\frac{5}{11}$$
B
$$\frac{5}{12}$$
C
$$\frac{7}{12}$$
D
$$\frac{7}{11}$$
4
MHT CET 2021 20th September Morning Shift
MCQ (Single Correct Answer)
+2
-0

A random variable X has the following probability distribution

$$\mathrm{X=x}$$ 0 1 2 3 4 5 6 7
$$\mathrm{P[X=x]}$$ 0 $$\mathrm{k}$$ $$\mathrm{2k}$$ $$\mathrm{2k}$$ $$\mathrm{3k}$$ $$\mathrm{k^2}$$ $$\mathrm{2k^2}$$ $$\mathrm{7k^2+k}$$

then F(4) =

A
$$\frac{3}{10}$$
B
$$\frac{1}{10}$$
C
$$\frac{7}{10}$$
D
$$\frac{4}{5}$$
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