First you had to add by seven from both sides of equation form.
Then simplify by equation.
Next, you multiply by two from both sides of equation form.
And finally, simplify by equation.
Final answer:
Hope this helps!
And thank you for posting your question at here on brainly, and have a great day.
-Charlie
Complete Question
In a list of 15 households, 9 own homes and 6 do not own homes. Four households
are randomly selected from these 15 households. Find the probability that the
number of households in the sample which own homes is exactly 3
Answer:
Step-by-step explanation:
From the question we are told that
The number of household is n = 15
The number of household that own homes is k = 9
The number of household that do not own homes is u = 6
The number of households randomly selected is q = 4
Generally the number of ways of selecting 3 household from the total number of 9 households that own homes is mathematically represented as
Here C stands for combination hence we would be making use of the combination feature in our calculator
=>
=>
Generally the number of ways of selecting 1 household from the total number of 6 households that do not own homes is mathematically represented as
=>
=>
Generally the number of ways of selecting 4 household from the total number of 15 households on the list is mathematically represented as
=>
=>
Generally the probability that the number of households in the sample which own homes is exactly 3 is mathematically represented as
=>
X is here represent the number of household in the selected sample that own homes
=>
