1
TG EAPCET 2024 (Online) 9th May Evening Shift
MCQ (Single Correct Answer)
+1
-0

The variance of the following continuous frequency distribution is

Classinterval 0-4 4-8 8-12 12-16
Frequency 2 3 2 1
A
$\frac{128}{7}$
B
15
C
19
D
$\frac{130}{7}$
2
TG EAPCET 2024 (Online) 9th May Evening Shift
MCQ (Single Correct Answer)
+1
-0
Among the 5 married couples, if the names of 5 men are matched with the names of their wives randomly, then the probability that no man is matched with name of his wife is
A
$\frac{9}{20}$
B
$\frac{1}{5}$
C
$\frac{11}{30}$
D
$\frac{17}{60}$
3
TG EAPCET 2024 (Online) 9th May Evening Shift
MCQ (Single Correct Answer)
+1
-0
If 3 dice are thrown, the probability of getting 10 as the sum of the three numbers that appeared on the top faces of the dice is
A
$\frac{1}{9}$
B
$\frac{7}{72}$
C
$\frac{5}{36}$
D
$\frac{1}{8}$
4
TG EAPCET 2024 (Online) 9th May Evening Shift
MCQ (Single Correct Answer)
+1
-0
Three similar urns $A, B, C$ contain 2 red and 3 white balls; 3 red and 2 white balls; 1 red and 4 white balls respectively. If a ball selected at random from one of the urns is found to be red, then the probability that it is drawn from urn $C$ is
A
$\frac{1}{6}$
B
$\frac{1}{3}$
C
$\frac{1}{2}$
D
$\frac{2}{9}$
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