Answer:
- 6 1/2
Step-by-step explanation:
-4 - 2 /12
Since the signs are alike, we add and take the signs of the larger
-( 4+2 1/2)
- (6 1/2)
There are 2 answers: Choice 1, Choice 4
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Why is this? Because we use the rule
P(A & B) = P(A) * P(B)
which only works if events A and B are independent
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For the first answer choice,
P(A) * P(B) = 0.6*0.4 = 0.24 = P(A & B)
so that matches.
The same applies to the fourth answer choice as well
P(A) * P(B) = 0.3*0.2= 0.06 = P(A & B)
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The other answer choices don't match up.
The second answer choice has
P(A) * P(B) = 0.3*0.4 = 0.12 but that doesn't match with the 0.70 given
Similarly for the third answer choice,
P(A) * P(B) = 0.5*0.1 = 0.05 which doesn't match with the 0.60
Answer:
the number of red marbles ÷
the number of marbles
Therefore the probability that they both select a red marble is 1/9
His estimate is a little high. The square root of 15= 3.87 and he said it's 3.8
The tax rounded to the nearest penny would be $2.19 because you would round the 5 up.
