Test:
Probability - Ambitious
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Question 1:
Probability that a factory doesn't meet it's production limit is
$\frac{3}{25}$
. What is the probability that a factory meets the production limit?
A
$80\%$
B
$12\%$
C
$\frac{22}{25}$
D
$\frac{1}{5}$
Question 2:
What is the probability of throwing
$3$
with a cube shaped dice?
A
$\frac{1}{6}$
B
$\frac{1}{2}$
C
$1$
D
$\frac{1}{3}$
Question 3:
What is the probability of throwing
$4$
or
$5$
with a dice?
A
$\frac{1}{3}$
B
$\frac{1}{2}$
C
$\frac{1}{12}$
D
$\frac{1}{6}$
Question 4:
What is the probability of throwing
$6$
in a first try and
$1$
in the second throw with a dice?
A
$\frac{1}{3}$
B
$\frac{1}{12}$
C
$\frac{1}{6}$
D
$\frac{1}{36}$
Question 5:
What is the probability of picking red king, red queen and red jack from a pack of cards?
A
$\frac{1}{52}$
B
$\frac{1}{8}$
C
$\frac{3}{26}$
D
$\frac{3}{52}$
Question 6:
Dice was thrown
$100$
times. Number
$2$
was picked
$11$
times. What is the relative frequency of
$2$
? Is the dice fair?
A
$0.09,$
not fair
B
$0.17,$
fair
C
$0.16,$
fair
D
$0.11,$
not fair
Question 7:
There are
$6$
green balls and
$4$
purple balls in a box. What is the probability of picking the green ball?
A
$P\left(G\right)=\frac{3}{5}$
B
$P\left(G\right)=\frac{3}{10}$
C
$P\left(G\right)=\frac{2}{5}$
D
$P\left(G\right)=\frac{1}{2}$
Question 8:
Six friends sent each other postcards from summer holidays. How many postcards were sent in total?
A
$30$
B
$36$
C
$18$
D
$15$
Question 9:
Six friends shook hands with each other for goodbye. How many handshakes there were in total?
A
$18$
B
$36$
C
$15$
D
$30$
Question 10:
There are
$6$
green and
$4$
purple balls in a box. How many purple balls must be added to the box, so that probability of picking a purple ball is
$\frac{2}{3}$
?
A
$2$
B
$4$
C
$6$
D
$8$
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