Five coin throws

Five coin throws

Pencil and paper
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This task is about probability for a series of coin throws.
A coin was thrown 5 times. Circle the correct answers about the probability (you should not need to do any calculations).
 
a) The probability that there were 8 heads is
 
(A)   0
(B)   greater than 0 but less than 0.5
(C)   0.5
(D)   greater than 0.5 but less than 1.0
(E)   1.0
 
b) The probability that there were fewer than 6 heads is
 
(A) 0
(B) greater than 0 but less than 0.5
(C) 0.5 Combinations.
(D) greater than 0.5 but less than 1.0
(E) 1.0
 
c) The probability that there were exactly 3 heads is
 
(A)   0
(B)   greater than 0 but less than 0.5
(C)   0.5
(D)   greater than 0.5 but less than 1.0
(E)   1.0
 
d) The probability that there was more than 1 head is
 
(A)   0
(B)   greater than 0 but less than 0.5
(C)   0.5
(D)   greater than 0.5 but less than 1.0
(E)   1.0
 
Task administration: 
This task is completed with pencil and paper only.
Level:
5
Curriculum info: 
Keywords: 
Description of task: 
Students determine the correct probabilities for a series of coin throws.
Learning Progression Frameworks
This resource can provide evidence of learning associated with within the Mathematics Learning Progressions Frameworks.
Read more about the Learning Progressions Frameworks.
Answers/responses: 
 

 

Y10 (06/2000)

a)

A

easy

b)

E

difficult

c)

B

difficult

d)

D

moderate