Create a new printable
Answer key also includes questions
Answer key only gives the answers
No answer key
   Worksheets and No Prep Teaching Resources
Math Worksheets

 

Sample - Click above to make a new math worksheet (PDF).
Name _____________________________
Date ___________________
Statistics
Complete.

1.   Suppose your grade for the chemistry unit is based upon two tests (each worth 30% of your total grade), three homework assignments (each worth 10% of your total grade) and one lab report (worth 10% of your total grade). If your test scores were 76 and 81, and the homework scores were 87, 90, and 86, what score must you receive on your lab report to insure a final chemistry unit grade of at least 84?

2.   Rebecca and Tyler work in the purchasing department for SuperChem. The production manager e-mailed the purchasing department requesting a fresh supply of benzene. Tyler immediately ordered nineteen 250-ml bottles. After lunch, Rebecca also saw the message and ordered thirteen 1.5 liter bottles. Unknown to either one of them, another buyer had predicted that they would need more benzene and ordered two 2-gallon containers. What was the average amount of benzene that the three buyers ordered? _____ liters.

3.   Austin performed a reaction that resulted in the precipitation of 5.8 g of silver chloride in a beaker. Emily and Destiny performed the same reaction and got 5.2 g and 5.4 g, respectively. The instructor told them that the most silver chloride he had seen produced in the reaction was 6.4 g. Find the average of the three students' results and compare it (as a percent) to the maximum amount seen by the teacher.

4.   Christina measured the pH in a flask of acidic solution several times. She was slowly adding more acid trying to reach a stable pH of 5.5. Every time she would add a few drops of acid, the pH would drop. A few minutes after she added drops of acid the pH would start to rise. So she kept this up and finally read the pH eight times over a period of five minutes without adding more acid. The eight pH measurements were 5.5, 5.39, 5.47, 5.36, 5.42, 5.4, 5.39, and 5.41. What is the range of her measurements?

5.   * This is a pre-made sheet.
Use the link at the top of the page for a printable page.
6.   Mr. Bloop was separating three organic liquids by distillation. He put 100 ml of a mixture into a distillation flask and set about heating it up. He began flowing water through the condenser and watched as the temperature rose. The temperature stopped rising and was stable at 89C for 5 minutes 21 seconds and the mixture boiled. Then it slowly rose to 96C and stabilized for 12 minutes and 48 seconds where it boiled for awhile and then it rose again to 99C and stayed there for 4 minutes. He stopped the process. What was the average time (in minutes and seconds) that the liquid was stable at a boiling point?


 


Answer Key


Sample
This is only a sample worksheet.

Create a new printable
Answer key also includes questions
Answer key only gives the answers
No answer key
   Worksheets and No Prep Teaching Resources
Math Worksheets