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sammy [17]
3 years ago
11

Two dice are rolled find the probability that the sum is equal to 4

Mathematics
1 answer:
8090 [49]3 years ago
8 0
There are totally 12 numbers on two dices. 1, 1, 2, 2, 3, 3, 4, 4, 5, 5, 6, 6

The possibility of getting the sum of 4 from two dices are

1 + 3
3 + 1
2 + 2
2 + 2

There are totally 36 different possibilities of getting a sum of numbers from both dices.
There are 8/36 possibilities to get a sum of 4, which simplifies to 2/9
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A researcher analyzed the results of her data from 30 subjects and calculated the variance of scores at 113.00. What is the stan
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Question and answer choices in the attachment
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<h3>You have the correct answer. It is choice C) additive inverse.</h3>

The additive inverse is the idea of adding a negative number, which is the same as subtraction. Example: 2 + (-3) = 2-3

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-----------------------------------------------

Extra info:

  • Choice A is ruled out because the commutative property of multiplication is the idea that we can multiply two numbers in any order we want. Eg: 7*8 = 56 and 8*7 = 56, so 7*8 = 8*7
  • Choice B is ruled out as well. The commutative property of addition is similar to the rule mentioned in choice A. But now we're adding. This rule says we can add two numbers in any order. Eg: 4+5 = 5+4 = 9
  • Choice D is ruled out also. The multiplicative inverse of x is 1/x. Multiplying the two together gets you 1. Keep in mind that x cannot be zero. Example: The multiplicative inverse of 99 is 1/99, since 99*(1/99) = 99/99 = 1.
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