1
MHT CET 2023 13th May Morning Shift
MCQ (Single Correct Answer)
+2
-0

A random variable $$X$$ has the following probability distribution

$$\mathrm{X}=x$$ 0 1 2
$$\mathrm{P(X}=x)$$ $$\mathrm{4k-10k^2}$$ $$\mathrm{5k-1}$$ $$\mathrm{3k^3}$$

then P(X < 2) is

A
$$\frac{2}{9}$$
B
$$\frac{5}{9}$$
C
$$\frac{8}{9}$$
D
$$\frac{4}{9}$$
2
MHT CET 2023 13th May Morning Shift
MCQ (Single Correct Answer)
+2
-0

If $$\mathrm{I}=\int \frac{2 x-7}{\sqrt{3 x-2}} \mathrm{~d} x$$, then $$\mathrm{I}$$ is given by

A
$$\frac{106}{27}(3 x-2)^{\frac{3}{2}}+\mathrm{c}$$, where $$\mathrm{c}$$ is a constant of integration.
B
$$\frac{98}{27}(3 x-2)^{\frac{3}{2}}+\mathrm{c}$$, where c is a constant of integration.
C
$$\frac{4}{27}(3 x-2)^{\frac{3}{2}}-\frac{34}{9}(3 x-2)^{\frac{1}{2}}+\mathrm{c}$$, where $$\mathrm{c}$$ is a constant of integration.
D
$$\frac{4}{27}(3 x-2)^{\frac{3}{2}}+\frac{34}{9}(3 x-2)^{\frac{1}{2}}+\mathrm{c}$$, where $$\mathrm{c}$$ is a constant of integration
3
MHT CET 2023 13th May Morning Shift
MCQ (Single Correct Answer)
+2
-0

Let $$\mathrm{X}$$ be random variable having Binomial distribution $$B(7, p)$$. If $$P[X=3]=5 P[X=4]$$, then variance of $$\mathrm{X}$$ is

A
$$\frac{7}{6}$$
B
$$\frac{35}{36}$$
C
$$\frac{77}{36}$$
D
$$\frac{1}{36}$$
4
MHT CET 2023 13th May Morning Shift
MCQ (Single Correct Answer)
+2
-0

The scalar product of vectors $$\overline{\mathrm{a}}=\hat{\mathrm{i}}+2 \hat{\mathrm{j}}+\hat{\mathrm{k}}$$ and a unit vector along the sum of vectors $$\bar{b}=2 \hat{i}-4 \hat{j}+5 \hat{k}$$ and $$\bar{c}=\lambda \hat{i}+2 \hat{j}-3 \hat{k}$$ is one, then the value of $$\lambda$$ is

A
1
B
$$-2$$
C
$$-3$$
D
2
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