Stats and Mechanics

Question 1

What percentages of area lie within one, two and three standard deviations from the mean?

Answer 1

68%, 95%, 99.7%

Question 2

What are the 2 years in the large data set?

Answer 2

1987 and 2015

Question 3

1 knot = how many mph?

Answer 3

1.15

Question 4

What is the beaufort conversion?

Answer 4

Describes wind in a qualitative way (eg. calm, light, moderate, fresh)

Question 5

1 hectopascal = how many Pa?

Answer 5

100

Question 6

Which values are not known for UK cities in the first half of 1987?

Answer 6

Daily total sunshine, mean windspeed, maximum gust

Question 7

Which values are recorded for international location?

Answer 7

Daily mean temperature, daily total rainfall, daily mean pressure, daily mean windspeed

Question 8

What happened in October 1987 in the UK?

Answer 8

A big storm involving high windspeed and rainfall

Question 9

What are the 5 criteria for a binomial distribution?

Answer 9

-Fixed finite number of trials
-Each outcome is independent
-There are only 2 outcomes (success or failure)
-The probability of success is constant
-It’s a discrete random variable

Question 10

What are the 4 criteria for a normal distribution?

Answer 10

-It’s a continuous random variable
-The distribution is symmetrical
-The distribution is bell shaped
-The mean, median and mode is the same