A theater can seat 864 people. The number of rows is 5 less than the number of seats in each row. How many rows of seats are the
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Solve both equations for y:
Set the expressions equal to each other:
So, for every nonzero number a the system of equations has one solution.
Set the expressions equal to each other:
So, for every nonzero number a the system of equations has one solution.
Answer with explanation:
The 90% confidence interval (51%, 61%) for proportion means that the proportion of getting heads lie in it.
Given : Total number of times coin is tossed = 250
Number of times they got head =140
The probability of getting a head = 0.56
The confidence interval for proportion is given by :-
Given significance level :
Critical value :
Now, the 90% confidence interval for proportion will be :-
Hence, the given confidence interval is correct.