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Applying Probability 1
供稿人: Schleper
(原作者: O'Kane)
What is the probability
of picking a yellow disc?
b.  Simplify your answer
a.
What is the probability
of picking a yellow disc?
What is the probability
of picking a yellow
or a blue disc?
The probability that you get a head when tossing a coin
The probability that  you get chosen when all the names
of your class are put in a hat and one is drawn out
The probability that you get a number less
than 7 when rolling an ordinary dice
Match the correct to each statement
0
A
0.5
B
1
C
a. it is an A?
What is the probability that :
A letter is chosen at random from the word
MATHEMATICS
b.  it is an A or a T?
c.  it is a vowel
The probability that she picks a black marble is ½
The probability that she picks a white marble is ¼
a. How many black marbles does she have?
b. How many white marbles does she have?
Jane has 20 marbles.
Some are black, some are white and some are red
Rolls
20
10
30
40
50
60
Sean is doing an experiment to see if
a coin is biased
Total heads
13
19
24
31
39
7
b. How many heads
    would you expect
    to get with 60 rolls?
a. Is the coin baised?
No
Yes
Michael spins a spinner 10 times
He gets the letter B six times.
a. How many times would he
    expect to get the letter B
    if he did 30 spins?
What is the probability of getting blue?
Green
Results from choosing a disc 20 times
10
Yellow
3
Blue
7
John has a 3 sided spinner with 1,2 and 3 on it.
He also has a 4-sided spinner with 2,4,5 and 6 on it.
He spins both spinners and adds the score.
What is the probability of scoring 7?
Simplify your answer.
+
2
4
5
6
1
3
4
6
7
2
4
8
6
7
7
3
8
5
9
What is the missing value in the table?
1
3
2
4
The table shows the
probabilites that the arrow
will land on each number.
Score
2
4
1
3
Probability
0.3
0.2
0.1
 ?
The probability that player A will win the
tennis match is ⅛
What is the probability that player A will lose?
The probability that team A will win the
football match is 3/10.
The probability that team A will lose is 6/10
What is the probability that player A will draw?
Complete the probability
tree diagram.
There are 9 discs in a bag.
4 are red and 5 are green.
One disc is taken out.
Green
Red
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