Let's say we had a bag of 10 marbles in which 3 are red. The probability of pulling out a red marble is 3/10 = 0.30 = 30%
If we do not replace that red marble, then there are 3-1 = 2 red marbles left and 10-1 = 9 marbles overall leftover. The probabiity of getting another red marble is 2/9 = 0.222 = 22.2% approximately. The probability has changed. The second event probability is dependent on the first event.
If we pulled out a non-red marble on the first selection, then we would have 3 red marbles out of 9 left over so 3/9 = 1/3 = 0.333 = 33.3% is the approximate probability of getting a red marble on the second selection. We see that this is not the same as the 30% we got earlier.
The second event depends entirely on what happens during the first event, so we say the second event is dependent on the first. Or more shortly, "the two events are dependent".
So any time there is the key phrase "no replacement" it means "dependent events".
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Based on what is discussed in the section above, this means that answer choices A and C are NOT independent events.
The other two answer choices do describe independent events. Why? Because the act of flipping a coin does not affect the outcome of the spinner, and vice versa. This is assuming the coin and spinner are kept separate. The probability for one item's outcome remains the same regardless of what happens to the other item's outcome. The same applies to rolling 4 number cubes (aka dice).
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<h3>Final Answers: Choice B and choice D</h3>
Answer:
18 on the left 29 on the right
Step-by-step explanation:
LEFT SIDE
There is one row of 10 cubes and one row of 8 cubes making 18
RIGHT SIDE
There are two rows of 10 cubes and 1 row of 9 cubes making 29
Answer:I got 18.28
Step-by-step explanation:
so for getting the perimeter, you only need the outer line, so you sum the measurements you have for the rectangle: 1+2+2+7= 12. After that you need the circumference of the circle, you can figure it out by using the formula C = 2pi(r) You can find the radius by substracting the known sides of the rectangle attached to the circle from the bottom base and then dividing it in 2, leaving us with a radius of 2. Then we input values; C=2pi(2) which equals 4pi, but we need to divide that in half since it’s only half a circle. That leaves us with 2pi, or 6.28. Then we add the perimeter of the square, which was 12, and 6.28+12= 18.28
Well the answer is really simple by what i see that the number that is in the question is easy to figure out so i can give you answer quick and easy the answer to this question is 3,480 kilometers see 476 rounded to the nearest whole number would in fact 480 because 76+5=80 so the answer is 480
If both of the numbers were positive, then we would do 6 > 4. But because these numbers are negative, we do the opposite.
-6 < -4