Answer:
22.71
Step-by-step explanation:
Please mark me branliest?!?!
Answer:
K = -2
Step-by-step explanation:
If y varies directly as x, k (constant) can be found by dividing the y-coordinate by the x-coordinate.

Answer:
a) It is a binomial experiment
b) It is not a binomial experiment, since we do not have a value of n.
Step-by-step explanation:
The binomial probability is the probability of exactly x successes on n repeated trials, and X can only have two outcomes.
So:
a) A poll of 1200 registered voters is conducted in which the respondents are asked whether they believe Congress should reform Social Security.
For each voter, there are only two outcomes. Either they believe the Congress should reform Social Security, or they do not believe.
There are 1200 voters, so
.
Each voter has a probability of voting yes and a probability of voting no. So yes, it is a binomial experiment.
b) A baseball player who reaches base safely 30% of the time is allowed to bat until he reaches base safely for the third time. The number of at-bats required is recorded.
Here, there is no fixed number of at bats, so there is no value of n. So this is not a binomal experiment.
<h3>The answer as a fraction is 1/2</h3><h3>In decimal form the answer converts to 0.5 which is equivalent to 50%</h3>
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Explanation:
"given that the first die rolled is a 2" means we know 100% that the first die shows a 2. Either we can see the die or a friend is telling us the status. Since we know the first die is a 2, this means we can effectively ignore it. Everything will hinge on the second die. If the second die shows an odd number, something like 1, then 2+1 = 3 is the result which is also odd.
The general rule is odd+even = odd and even+even = even.
Therefore, the two dice must together be even for the sum to be even.
Of the six possible ways to roll a die {1,2,3,4,5,6}, there are 3 even values {2,4,6} so the chances of rolling an even number on the second die is 3/6 = 1/2. Again we dont need to consider the first die at all since everything practically hinges on this second die.