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valentina_108 [34]
3 years ago
6

Please helpppppppppp

Mathematics
1 answer:
lyudmila [28]3 years ago
8 0

Answer:

Incorrect

Step-by-step explanation:

The fraction of 6/12 all squared gives 36/144 36/36 and 144/36  reduces to 1/4.

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A and B are two events. Let P(A)=0.5 , P(B)=0.9 and P(A and B)=0.15 .
Nana76 [90]

Answer:

option-C

Step-by-step explanation:

we are given

Let P(A)=0.5

P(B)=0.9

P(A and B)=0.15

we know that

P(A|B)=\frac{P(Aand B)}{P(B)}

now, we can plug values

P(A|B)=\frac{0.15}{0.9}

P(A|B)=0.16666

but we have

P(A)=0.5

we can see that both are not equal

P(A|B)\neq P(A)

so, A and B are not independent

so, option-C........Answer


5 0
3 years ago
A fair die is rolled 5 times. What is the probability that a 3 is obtained on at least one of the rolls? Round your answer to th
Lerok [7]

Answer:

0.200

Step-by-step explanation:

The probability of obtaining a 3, in one roll of a fair die is 1/6.

Now, we have 5 rolls.

We now want to know the probability of a 3 showing up in at least one of the rolls.

This simply mean, we add the probabilities of three showing one time plus probability of three showing in 2 of the rolls e.t.c

This means we can have 3 showing up to 5 times.

We add the probabilities as follows:

(1/6) + (1/6)^2 + (1/6)^3 + (1/6)^4 + (1/6)^5 = 0.199974 = 0.200

3 0
3 years ago
Simplify your answer and write it as a proper fraction or as a whole or mixed number.6 2/11 1/11 =
Kisachek [45]
6 3/11=6 2/11 + 1/11 = 6 3/11
4 0
3 years ago
If x-y doesn't equal 0 then x^2-y^2 / x-y =
NARA [144]
Recognize the differnce of 2 perfect squares

a²-b²=(a-b)(a+b)

so
\frac{x^2-y^2}{x-y}=\frac{(x-y)(x+y)}{x-y}=(\frac{x+y}{1})(\frac{x-y}{x-y})=(x+y)(1)=x+y
3 0
3 years ago
What is fourteen plus fourteen
Annette [7]

Answer:

28

Step-by-step explanation:

14 + 14 = 28

7 0
3 years ago
Read 2 more answers
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