theyylovejay
04.03.2021 •
Mathematics
uppose that you live in a community that has 1,250 households. Among these households, 500 have traditional landline telephones while the remaining 750 only use cellular and / or VOIP telephones. We are going to select 100 households from your community at random without replacement. The first household selected does not have a traditional landline telephone. What is the probability that the second household selected will have a traditional landline telephone
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Ответ:
0.4003 = 40.03% probability that the second household selected will have a traditional landline telephone.
Step-by-step explanation:
A probability is the number of desired outcomes divided by the number of total outcomes.
The first household selected does not have a traditional landline telephone.
This means that of 1250-1 = 1249 households, 500 have traditional landline telephones.
What is the probability that the second household selected will have a traditional landline telephone
500/1249 = 0.4003
0.4003 = 40.03% probability that the second household selected will have a traditional landline telephone.
Ответ:
17
Step-by-step explanation: In this arithmetic sequence we are looking for the common difference. We can see the common difference is 5 because: -8+5=-3
-3+5=2
2+5=7
7+5=?
?=17