Determine whether the data set is a population or a sample. 500 trad climbers who responded to an online gear brand satisfaction survey

Identify the data set’s level of measurement. Climbing difficulty rating (Yosemite Decimal System): Class 1 (easy hiking) to Class 5.15 (very difficult climbing)

Describe the shape of the data in this histogram: 

Provide an appropriate response.Use the ogive below to approximate the cumulative frequency for 10 hours.  

Identify the data set’s level of measurement. Climber’s favorite brand of gear: Black Diamond, Petzl, Mammut, La Sportiva

For a given data set, the standard deviation is 5. What is the variance?

For the following Stem and Leaf Plot, what is the minimum entry?  Daily Temperature (°F) in a Mountain Camp 58  | 1 3 4 5 659  | 0 1 2 3 4 5 660  | 0 1 2 3 4 5 6 761  | 1 2 3 4 5 662  | 0 1 2 Key: 60 | 3 = 603°F

A study on weight loss uses a digital scale that consistently overestimates weight by 2 pounds for all participants.Why might this lead to inaccurate results?

You are the IT manager for a local high school and need to purchase new toner cartridges for the office printers. You have two brands to choose from: Brand X cartridges, which have a mean print yield of 1500 pages with a standard deviation of 50 pages, or Brand Y cartridges, which also have a mean print yield of 1500 pages but with a standard deviation of 120 pages. Which brand of toner cartridge should you choose and why?

For a given data set, the standard deviation is 3. What is the variance?