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Galina-37 [17]
3 years ago
13

A number cube with the numbers 1 through 6 is rolled. Find the given probability

Mathematics
1 answer:
Nastasia [14]3 years ago
4 0

Answer:

1/6

Step-by-step explanation:

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The usher at a wedding asked each of the 80 guests whether they were a friend of the bride or of the groom. Find the probability
yawa3891 [41]

<u>Complete Question</u>

The usher at a wedding asked each of the 80 guests whether they were a friend of the bride or of the groom. The results are: 59 for Bride, 50 for Groom, 30 for both. Find the probability that a randomly selected person from this sample was a friend of the bride OR of the groom.

Answer:

0.9875

Step-by-step explanation:

Total Number of Guests which forms the Sample Space, n(S)=80

Let the Event (a friend of the bride) =A

Let the Event (a friend of the groom) =B

n(A) =59

n(B)=50

Friends of both bride and groom, n(A \cap B)=30

Therefore:

n(A \cup B)=n(A)+n(B)-n(A \cap B)\\n(A \cup B)=59+50-30\\n(A \cup B)=79

The number of Guests who was a friend of the bride OR of the groom = 79

Therefore:

The probability that a randomly selected person from this sample was a friend of the bride OR of the groom.

P(A \cup B) =\dfrac{n(A \cup B) }{n(S)} \\\\=\dfrac{79 }{80}\\\\=0.9875

4 0
3 years ago
2 + 1 =<br> 4 3. What’s the answer
kkurt [141]

Answer:

3 is the answer haha its not 4

3 0
3 years ago
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Joy has been pulled over for speeding on a freeway. The faster she was going, the higher the ticket will be. True or False? The
alexgriva [62]
I just took it and it's true

6 0
3 years ago
What is 5*5-4+445*7+41-82 whats the answer
IRISSAK [1]
Remember PEMDAS (Parentheses, Exponents, Multiplication ⇔ Division, Addition ⇔ Subtraction). This is the order that you solve expressions in.


5 * 5 - 4 + 445 * 7 + 41 - 82   Multiply 5 and 5
  25 - 4 + 445 * 7 + 41 - 82     Multiply 445 and 7
     25 - 4 + 3115 + 41 - 82       Subtract 4 from 25
        21 + 3115 + 41 - 82          Add 21 and 3115
            3136 + 41 - 82             Add 3136 and 41
                 3177 - 82                 Subtract 82 from 3177
                    3095
5 0
3 years ago
So a negative number minus a negative number equals a positive so is a negative number times a negative number a positive or a n
Arada [10]
A negative times a negative is a positive.
because 2 negatives equals positive.
I HOPE THIS HELPS!!. HAVE FUN!!
5 0
3 years ago
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