Verify each of the solutions by substituting them back into the original equation <span><span>log<span>(−2a+9)</span>=log<span>(7−4a)</span></span><span>log<span>(-2a+9)</span>=log<span>(7-4a)</span></span></span> and solving. In this case, all solutions were found to be valid.<span>a=−<span>1</span></span>
The conditions which must be met to use z procedures in a significance test about a population proportion include:
I. The population is greater than 10 times the sample size.
II. The probability of success multiplied by the sample size is greater than or equal to 10.
III. The probability of failure multiplied by the sample size is greater than or equal to 10.
<h3>What is Z procedure?</h3>
This is a statistical test done on data that follows a normal distribution and determines if the population means are different when the variances are known and the sample size is large.
The population must be greater than 10 times the sample size in this scenario with the other appropriate conditions being mentioned above.
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Answer:
c.0.13
Step-by-step explanation:
Answer:
which subjects do the students in my class like?
what is the height of each student in my class?
how many students from each school in this city love football?
what is the height of each student in my class?
what is the highest temperature of each month this year?
Step-by-step explanation:
A statistical question is one that can be answered by collecting data and where there will be variability in that data
one key word is “each” because you know there will be a variety of responses
options where you have to count something and find a total wouldn’t be statistical because you’re finding only one number and that’s not a variety
Answer:
La mayor tiene 61 años.
Step-by-step explanation:
Sea x,y,z la edad de la mayor, intermedio y la menor respectivamente.
Tenemos las siguientes ecuaciones:
(la suma de las edades es 127)
(la mayor tiene 30 años más que la menor)
La frase "y la del intermedio 26 menos que la menor" no tiene sentido, puesto que esto implicaría que la del intermedio es menor que la menor. Luego se asume que la frase ha de ser "y la del intermedio 26 menos que la mayor"
(la del intermedio tiene 26 menos que la mayor).
La segunda ecuación se traduce a x-30 =z. Si reemplazamos todo en la primera ecuación obtenemos
Obtenemos la ecuación
Sumando 56 a ambos lados y dividiendo por 3, obtenemos
Es decir la mayor tiene 61 años.
