Set contains the elements . Which of the following sets has a smaller standard deviation than set ?

I.

II.

III.

A train took two hours to travel from one station to another. What was the total distance covered?

(1) In the first hour, the train covered a third of the total distance at an average speed of 50 miles per hour

(2) In the second hour, the train's average speed was 100 miles per hour

What is the value of ?

(1)

(2)

The sum of four integers is 1,000. What is the product of the two largest integers?

(1) The four integers are consecutive odd positive integers

(2) The four integers have a median equal to their mean

If represents a single digit and the four-digit integer is divisible by 6, what is ?

Is ?

(1)

(2)

Venture capital firms pump millions of dollars each year into a variety of start-up companies, expecting most to fail but a few to give astronomical returns. However, optimism and positivity are keys to success in the start-up industry; no start-up wants to admit that it is on its way towards failure. Therefore, venture capital firms remain uncertain about the status of a majority of their investments.

The conclusion drawn above is based on the assumption that  

Several meteorologists have calculated that one individual should be struck each week by lightning.

The average global temperature is forecasted to be 0.5 degrees Celsius higher in 50 years, because this year's mean temperature is the same amount higher than that of 50 years ago.

During medieval times, Augustinian monks in Scotland are known to have used watercress as a means to combat scurvy and administered hemlock as a painkiller, revealing a detailed knowledge of the medicinal properties of herbs.

It is not in fact a whale, but the whale shark is as large as some species of whales, which measures up to 42 feet from tooth to fin.

The brightness on Earth of such celestial bodies like stars invariably depends both on the radius of the luminescent object and its temperature.

Aggressive cost-cutting campaigns have shown promise in the company's publishing division, the home to a few new startups that have grown at the same pace as the startups disrupting the industry through free journalism and user-submitted articles.

The Cygnus spacecraft was grounded last week ahead of its launch date due to massive coronal ejections from the Sun, which raised radioactivity to such levels so that their avionics systems might malfunction and the navigability of the ship might be compromised.

Skunks primarily eat fresh plant and animal material, but augmenting their diet by scavenging for human garbage and roadkill.

A team of British researchers, having spent three seasons investigating and mapping a region in West Antarctica, has discovered a massive ancient subglacial trough deeper than the Grand Canyon.