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What is the z-score corresponding to 20 pieces of candy

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What is the Z- Scores on questions 1-7

1. Scores on a history test have an average of 80 with a standard deviation of 6. What is the z-score for a student who earned a 75 on the test?

2. The weight of chocolate bars from a particular chocolate factory has a mean of 8 ounces with a standard deviation of .1 ounce. What is the z-score corresponding to a weight of 8.17 ounces?

3. Books in the library are found to have an average length of 350 book pages with a standard deviation of 100 book pages. What is the z-score corresponding to a book of length 80 book pages?

4. The temperature is recorded at 60 airports in a region. The average temperature is 67 degrees Fahrenheit with a standard deviation of 5 degrees. What is the z-score for a temperature of 68 degrees?

5. A group of friends compares what they received while trick or treating. They find that the average number of pieces of candy received is 43, with a standard deviation of 2. What is the z-score corresponding to 20 pieces of candy?

6. The mean growth of the thickness of trees in a forest is found to be .5 cm/year with a standard deviation of .1 cm/year. What is the z-score corresponding to 1 cm/year?

7. A particular leg bone for dinosaur fossils has a mean length of 5 feet with a standard deviation of 3 inches. What is the z-score that corresponds to a length of 62 inches?

Reference no: EM132846580

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