Jasmine was shopping at a go wet store and saw the following list of prices. She brought $20 to spend on groceries. If she buys
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Answer:
64 ounces.
Step-by-step explanation:
Given:
Drew has two cats.
One cat weighs 17 pounds.
The other one weighs 12 pounds. (instead of 1212 pounds)
Audrey's dog weighs 33 pounds.
Question asked:
What is the difference in ounces between Audrey's dog and the combined weights of Drew's cats ?
Solution:
<u>For Drew </u>
Weight of one cat = 17 pounds
Weight of another cat = 12 pounds
Combined weight = 17 pounds + 12 pounds = 29 pounds
Now, convert it into ounces:-
As we know:
1 pound = 16 ounces
29 pounds = 16 29 = 464 ounces
<u>For Audrey</u>
Weight of dog = 33 pounds
Now, convert it into ounces:-
1 pound = 16 ounces
33 pounds = 16 33 = 528 ounces
Combined weight of Drew's cats = 464 ounces
Weight of Audrey's dog = 528 ounces
Difference = 528 ounces - 464 ounces = 64 ounces
Thus, the difference in ounces between Audrey's dog and the combined weights of Drew's cats is of 64 ounces.
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Answer:
The lowest score on the final exam that would qualify a student for an A is 80.
The lowest score on the final exam that would qualify a student for a B is 74.68.
The lowest score on the final exam that would qualify a student for a C is 67.33.
The lowest score on the final exam that would qualify a student for a D is 62.
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.
Mean of 71 and a standard deviation of 7.
This means that
Grades are assigned such that the top 10% receive A's, the next 20% received B's, the middle 40% receive C's, the next 20% receive D's, and the bottom 10% receive F's.
This means that:
90th percentile and above: A
70th percentile and below 90th: B
30th percentile to the 70th percentile: C
10th percentile to the 30th: D
Lowest score for an A:
Top 10% receive A, which means that the lowest score that would qualify a student for an A is the 100 - 10 = 90th percentile, which is X when Z has a pvalue of 0.9, so X when Z = 1.28.
The lowest score on the final exam that would qualify a student for an A is 80.
Lowest score for a B:
70th percentile, which is X when Z has a pvalue of 0.7, so X when Z = 0.525.
The lowest score on the final exam that would qualify a student for a B is 74.68.
Lowest score for a C:
30th percentile, which is X when Z has a pvalue of 0.3, so X when Z = -0.525.
The lowest score on the final exam that would qualify a student for a C is 67.33.
Lowest score for a D:
10th percentile, which is X when Z has a pvalue of 0.1, so X when Z = -1.28.
The lowest score on the final exam that would qualify a student for a D is 62.