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ehidna [41]
3 years ago
12

What is 2 + 2 - 2 + 2

Mathematics
2 answers:
irga5000 [103]3 years ago
5 0

I'm pretty sure it's 4

Anni [7]3 years ago
5 0

Answer:

4

Step-by-step explanation:

i used my calculator lol

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each of the 20 balls is tossed independently and at random into one of the 5 bins. let p be the probability that some bin ends u
amm1812

if p is the probability that some bin ends up with 3 balls and q is the probability that every bin ends up with 4 balls. pq is 16.

First, let us label the bins with 1,2,3,4,5.

Applying multinomial distribution with parameters  n=20  and  p1=p2=p3=p4=p5=15  we find that probability that bin1 ends up with 3, bin2 with 5 and bin3, bin4 and bin5 with 4 balls equals:

5−2020!3!5!4!4!4!

But of course, there are more possibilities for the same division  (3,5,4,4,4)  and to get the probability that one of the bins contains 3, another 5, et cetera we must multiply with the number of quintuples that has one 3, one 5, and three 4's. This leads to the following:

p=20×5−2020!3!5!4!4!4!

In a similar way we find:

q=1×5−2020!4!4!4!4!4!

So:

pq=20×4!4!4!4!4!3!5!4!4!4!=20×45=16

thus, pq = 16.

To learn more about Probability visit: brainly.com/question/29508225

#SPJ4

7 0
1 year ago
1 pts
balu736 [363]

9514 1404 393

Answer:

  $935.11

Step-by-step explanation:

The amount is given by the formula ...

  A = P(1 +r/n)^(nt) . . . P invested at rate r for t years compounded n per year

  A = $850(1 +0.024/2)^(2·4) = $935.11

The amount accumulated will be $935.11 after 4 years.

8 0
2 years ago
Suppose $1000 is invested at 8%, compounded quarterly. How much is in the account at the end of 4 years?
guajiro [1.7K]
The correct answer is $320
3 0
3 years ago
Chealsea wants to rearrange her room
Llana [10]

Answer:

Good for her.

3 0
3 years ago
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PLS ANSWER <br> Which number line represents the solutions to-2|x| =-6?<br> o<br> -8<br> 8
yarga [219]
1 is the correct answer my guy
3 0
3 years ago
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