Answer:
(i) It represents change in expenditure by candidates A; (ii)
Step-by-step explanation:
Which table shows a function that is decreasing only over the interval (–1, 1)? A 2-column table with 5 rows. The first column i
2 answers:
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Answer:
P(X≤5)=0.5357
Step-by-step explanation:
Using the binomial model, the probability that x adults from the sample, are pessimistic about the future is calculated as:
Where n is the size of the sample and p is the probability that an adult is pessimistic about the future of marriage and family. So, replacing n by 20 and p by 0.27, we get:
Now, 25% of 20 people is equal to 5 people, so the probability that, in a sample of 20 American adults, 25% or fewer of the people are pessimistic about the future of marriage and family is equal to calculated the probability that in the sample of 20 adults, 5 people of fewer are pessimistic about the future of marriage and family.
Then, that probability is calculated as:
P(X≤5)= P(1) + P(2) + P(3) + P(4) + P(5)
Where:
Finally, P(X≤5) is equal to:
P(X≤5) = 0.0018+0.0137 + 0.0480 + 0.1065 + 0.1675 + 0.1982
P(X≤5) = 0.5357
Answer:
And we can use the normal standard table and the complement rule and we got:
And the best answer would be:
C 0.07
Step-by-step explanation:
Let X the random variable who represent the amount of soda filled in large bottles and we know this:
And we want to find this probability:
And for this case we can use the z score formula given by:
And replacing we got:
And we can use the normal standard table and the complement rule and we got:
And the best answer would be:
C 0.07