Answer: A, If it is Tuesday, Marla has a piano lesson.
B. is implying that they don’t cancel any lesson at all for any reason
C. is implying that they cannot reschedule a lesson for a different day
D. is implying that Marla cannot play piano at all unless it is for a lesson
(X,y)=(8,5) step by step
The equation shows the answer
Answer:
110x5019.2 is equal to 552169.2
According to the given data we have the following:
what does 68.47 + 75.20 + 60.05 equal to
So, in order to calculate this, first we would sum the decimals of this numbers as follows:
0.47+0.20+0.05=0.72
Then procees to sum the numbers 68+75+60
So, 68+75+60=203
Therefore, 203+0.72=203.72
So, 68.47 + 75.20 + 60.05 equal to 203.72
Using the normal distribution, it is found that 44.43% of students are 21 or older and thus old enough to legally order alcohol at Griff's.
<h3>Normal Probability Distribution</h3>
The z-score of a measure X of a normally distributed variable with mean and standard deviation is given by:
- The z-score measures how many standard deviations the measure is above or below the mean.
- Looking at the z-score table, the p-value associated with this z-score is found, which is the percentile of X.
The mean and the standard deviation are given, respectively, by:
The proportion of students that are 21 or older is <u>one subtracted by the p-value of Z when X = 21</u>, hence:
Z = 0.14
Z = 0.14 has a p-value of 0.5557.
1 - 0.5557 = 0.4443 = 44.43% of students are 21 or older and thus old enough to legally order alcohol at Griff's.
More can be learned about the normal distribution at brainly.com/question/4079902
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