Answer:
Step-by-step explanation:
number3
The probability that at least two students share the same birthday is 83.22 %.
<h3>
Probability of sharing the same birthday</h3>
- Let P(A) = Probability that no two students share same birthday
- Let P(A') = Probability at least two students share same birthday
There are 365 days in year and there 36 students in the class.
Total sample space, n = 365³⁶
36 students will be selected as
<h3>Probability at least two students share same birthday</h3>
P(A') = 1 - P(A)
P(A') = 1 - 0.1678
P(A') = 0.8322
P(A') = 83.22 %
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Answer:
21=x
Step-by-step explanation:
75=4x-9
84=4x
21=x
Answer:
-x
Step-by-step explanation:
First you cancel the x^3 and the -x^3 because together, they equal 0.
Then you are left with 3x - 4x.
That equals -x.
Answer:
x= 8
Step-by-step explanation:
Step 1- Distribute into the parenthesis by 1.
4x+2+3(-1)+3(-1)x= 7
Step 2- Simplify.
4x+2-3-3x= 7
Step 3- Add common variables.
(4x-3x)+(2-3)
1x-1= 7
Step 4- Add 1 to both sides.
1x-1= 7
+1 +1
1x= 8
Step 5- Divide both sides by 1.
<u>1x</u>= <u>8</u>
1 1
x= 8