You had $50. You spent 10% of the money on clothes, 20% on games, and the rest on books. How much money was spent on books? Reme
2 answers:
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Answer:
The equation 'log Subscript 3 Baseline (negative 2 x minus 3) = 2' i.e. has x = –6 as the solution.
Step-by-step explanation:
<u>Checking the equation</u>
log Subscript 3 Baseline (negative 2 x minus 3) = 2
Writing in algebraic expression
Use the logarithmic definition
Therefore, the equation 'log Subscript 3 Baseline (negative 2 x minus 3) = 2' i.e. has x = –6 as the solution.
Answer:
And we can find this probability with the complement rule:
Step-by-step explanation:
Previous concepts
Normal distribution, is a "probability distribution that is symmetric about the mean, showing that data near the mean are more frequent in occurrence than data far from the mean".
The Z-score is "a numerical measurement used in statistics of a value's relationship to the mean (average) of a group of values, measured in terms of standard deviations from the mean".
Solution to the problem
Let X the random variable that represent the disagreements of a population, and for this case we know the distribution for X is given by:
Where and
We are interested on this probability
And the best way to solve this problem is using the normal standard distribution and the z score given by:
If we apply this formula to our probability we got this:
And we can find this probability with the complement rule: