Answer:
x = 2
Step-by-step explanation:
Answer:
And we know that each time that we win we recieve $1 and each time we loss we need to pay $1, so then the expected value would be given by:
And the variance is defined as:
Step-by-step explanation:
For this case we know that we can win if we select 2 balls of the same color, so we can find the probability of win like this:
So then the probability of no win would be given by the complement:
We can define the random variable X who represent the amount of money that we can win.
And we can use the definition of expected value given by:
And we know that each time that we win we recieve $1 and each time we loss we need to pay $1, so then the expected value would be given by:
We can calculate the second monet like this:
And the variance is defined as:
Answer:
temperature on the 5th days was -3 degree Celsius
Step-by-step explanation:
Mean is the average of the numbers
As per the statement:
The mean temperature for the first 4 days in January was 7°C.
Sum of the first 4 days temperature =
It is also given that:
the mean temperature for the first 5 days in January was 5°C.
then;
Sum of the first 5 days temperature =
We have to find the temperature on the 5th days.
Substitute the given values we have;
Therefore, the temperature on the 5th days was -3 degree Celsius
The probability that the spinner will land on c at least once is 5/9
<h3>How to determine the probability?</h3>
From the complete question, the probability that the spinner will not land on c when spun twice is:
P = 4/9
Using the complement rule, the probability that the spinner will land on c at least once is:
P' = 1 - P
This gives
P' = 1 - 4/9
Evaluate
P' = 5/9
Hence, the probability that the spinner will land on c at least once is 5/9
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Correct option is C, he has been offered an attractive job in another country.
Akira claims that Chie and his chance encounter was only brought about by a "matter of urgency," which he defines as "an opportunity to go to America, as dentist for Seattle's Japanese community" (lines 41-42).
Chie's answer to his marriage proposal will have an impact on Akira's decision to accept the job offer, so Akira makes the decision to talk with her personally. The chapter contains no evidence that Akira is concerned that his parents won't approve of Naomi, thus choice A is false.
Because Akira and Naomi "understand" each other, Choice B is inaccurate (line 63). Akira is not referring to this when he says "a matter of urgency," despite the fact that he may be aware that Chie is oblivious of his love for Naomi. Therefore, choice D is wrong.
Here's another question with an answer similar to this Akira and Chie:
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