G10 Jeopardy May 16

Random

100

What does SOCS stand for?

Shape

Outliers

Center

Spread

100

What's the difference between calculating sample standard deviation and population standard deviation?

Sample: divide by (N-1)

Population: divide by N

100

What are the two measures of center and two measures of spread we most commonly use?

Center: mean, median

Spread: standard deviation, IQR

100

Hangman: Fruit

_ _ _ _ _ _ _ _ _

CALAMANSI

200

Explain what IQR is and how to calculate it.

IQR is the middle 50% of data.

IQR = Q₃ (median of upper half) - Q₁ (median of lower half)

200

Explain the relationship between standard deviation and variance.

Standard deviation is the square root of variance.

(Variance is standard deviation squared)

200

When using SOCS to describe a data distribution, how can we describe shape?

left-skewed, right-skewed, symmetrical

200

Hangman: Chinese City

_ _ _ _ _ _

BENGBU

300

Classify each data type as categorical, discrete quantitative, or continuous quantitative:

Eye color, typing speed, ID number, religion, weight.

Classify each data type as categorical, discrete quantitative, or continuous quantitative:

Eye color, typing speed, ID number, religion, number of books in a library.

Eye color (categorical), typing speed (continuous quantitative), ID number (categorical), religion (categorical), number of books in a library (discrete quantitative).

300

How many outliers does this set of data have?

[3, 19, 22, 23, 26, 36, 55, 70]

How many outliers does this set of data have?

[3, 19, 22, 23, 26, 36, 55, 70]

300

Take the formula for population standard deviation, and explain what each part means.

Explain:

-sigma notation

-mu (fancy u)

-x (or x_i)

-n

300

Explain what inference is (in the context of data analysis)

Making a logical conclusion about a population based on data from a sample from that population.