Answer:
The minimum value of the bill that is greater than 95% of the bills is $37.87.
Step-by-step explanation:
When the distribution is normal, we use the z-score formula.
In a set with mean and standard deviation , the zscore of a measure X is given by:
The Z-score measures how many standard deviations the measure is from the mean. After finding the Z-score, we look at the z-score table and find the p-value associated with this z-score. This p-value is the probability that the value of the measure is smaller than X, that is, the percentile of X. Subtracting 1 by the pvalue, we get the probability that the value of the measure is greater than X.
In this question, we have that:
What are the minimum value of the bill that is greater than 95% of the bills?
This is the 95th percentile, which is X when Z has a pvalue of 0.95. So X when Z = 1.645.
The minimum value of the bill that is greater than 95% of the bills is $37.87.
Answer:
-3 x 10
Step-by-step explanation:
Because there are 10 questions, all wrong taking away 3 points
It would serve 5.3 people, or just 5 because you can't have .3 of a person. This is because 9/4=12/x so 9x=48, and 48 divided by 9 is 5.3, or just 5 people.
The two numbers are very near 7200 and 300. The sum of those is a good estimate of your sum:
... 7200 + 300 = 7500
_____
If you're taught methods of addition that include "make a ten" or "make a hundred", you know you can "borrow" a 1 from 7203 (making it 7202) and loan that 1 to 299 to make it 300. Now, you know your sum is exactly 7202+300 = 7502, with no estimation necessary.
Answer:
Step-by-step explanation:
Let the equation be :
The point (1,1) must satisfy this equation.
Similarly, the point (1,3) must satisfy:
Also for the point (9,2), we have:
Solving the equations (1), (2) and (3) simultaneously, we get:
We Substitute this values to get:
Multiply through by 8 to get: