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Probability Worksheets - Page 12

Probability Worksheets
  • Page 12
 111.  
7 guavas and 9 bananas are in a basket. Sam picked a fruit from the basket. Which fruit is most likely to be picked?
a.
guava
b.
both have equal chances of being picked
c.
banana
d.
I don′t know.


Answer: (c)


Correct answer : (3)
 112.  
10 black marbles, and 10 white marbles are placed in a bag. Mary picked a marble from the bag. Which one is most likely to be picked?
a.
white marble
b.
black marble
c.
both have equal chances of being picked
d.
I don′t know.


Answer: (c)


Correct answer : (3)
 113.  
John has 3 black, 3 green, and 3 white shirts in shelf. He pulls out a shirt from the shelf. Which shirt is most likely to be pulled out?
a.
white
b.
black
c.
green
d.
all three have equal chances


Answer: (d)


Correct answer : (4)
 114.  
Mary has 3 black, 4 red, and 2 white skirts in her shelf. She picks a skirt. Which skirt is she most likely to pick?
a.
red
b.
white
c.
black
d.
I don′t know.


Answer: (c)


Correct answer : (3)
 115.  
2 black, 2 green, 1 blue, and 3 white crayons are put inside a bag. Amy picked a crayon from the bag. Which color is she most likely to pick?
a.
white
b.
blue
c.
black
d.
green


Answer: (a)


Correct answer : (1)
 116.  
Which region is the spinner most likely to land on, if spun once?


a.
shaded
b.
any region
c.
unshaded
d.
I don′t know.


Answer: (b)


Correct answer : (2)
 117.  
Which number is the spinner most likely to land on, if spun once?


a.
7
b.
5
c.
2
d.
any of the numbers


Answer: (d)


Correct answer : (4)
 118.  
Which of the following is the correction factor of p(xa)?
a.
p(x < a + 0.5)
b.
p(x > a + 0.5)
c.
p(x > a - 0.5)
d.
p(x < a - 0.5)


Solution:

The correction factor for p(xa) is given by p(x > a - 0.5).


Correct answer : (3)
 119.  
Lydia had 6 green, 5 black, and 3 orange crayons in a box. She picked 2 crayons at random from the box. What is the probability that one crayon is black and the other is green?
a.
1591
b.
4591
c.
391
d.
3091


Answer: (a)


Correct answer : (1)
 120.  
Brad spun the spinner and recorded the results in the table shown. What is the experimental probability of not spinning a 2?
OutcomesNumber of spins
15
28
38
412
511
66



a.
41 50
b.
21 25
c.
6 25
d.
4 25


Answer: (b)


Correct answer : (2)

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