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A quality control scientist was interested to study the actual amount of soda (in ounces) in a standard 12-oz can.  He analyzed a random sample of 24 such cans.  The following numerical summaries were computed.  Which of the following is the proper interpretation of the standard deviation (in the context of the problem)?

The graph shows rental prices (dollars per month) in several cities for units with at least one bedroom and one bathroom.  Classify the statement: Rental monthly prices for units with at least one bedroom and one bathroom in Los Angeles and Boston have the same amounts of variation.

A scientist is analyzing the traveling speeds of a sample of 40 cars on a highway (using mph). Here is the summary of the data: Classify the statement: About 25% of sampled cars on a highway had travelling speeds below 50 mph.

A scientist is analyzing the traveling speeds of a sample of 40 cars on a highway (using mph). Here is the summary of the data: Classify the statement: About 25% of sampled cars on a highway had travelling speeds 50-60 mph.

Classify the following: the number of books owned by a student.

A scientist is analyzing the traveling speeds of a sample of 40 cars on a highway (using mph). Here is the summary of the data: Classify the statement: About 75% of sampled cars on a highway had travelling speeds faster than 60 mph.

The amounts of coffee dispensed from the vending machine follow a bell-shaped symmetric distribution.  In a sample of 50 cups of coffee dispensed from the vending machine, the mean amount dispensed was 7.6 ounces with a standard deviation of 0.2 ounces. Classify the statement: About 2.5% of sample cups dispensed from the vending machine have more than 8 ounces of coffee.

MATCHING: Use the periodic table to identify the element with the following electron configuration.

Description: For each chemical equation (which may or may not be balanced), list the number of each type of atom on each side of the equation, and determine if the equation is balanced.  List the number of each type of atom on the right side of the equationC3H8(g) + 3O2(g) → 3CO2(g) + 4H2O(g) Enter your answers separated by commas (the order of the numbers is the same as the order of the elements on the left side of the equation).

What are the products of the balanced equation for the combustion of C8H17OH?