Planes Traveling Between Seattle and Tokyo Often Go near Alaska

question 18

Multiple Choice

Planes traveling between Seattle and Tokyo often go near Alaska because

• A)there is less air traffic to contend with.
• B)planes travel faster in cooler air.
• C)the distance is shorter.
• D)the plane can stay over the safety of land for longer.

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Definitions:

Scores

Numerical values assigned to represent the performance, achievement, or characteristics of individuals or items.

Z Scores

Standardized scores that indicate the number of standard deviations a data point is from the mean of its distribution.

Mean

The arithmetic average of a set of numbers, calculated by adding all the values together and dividing by the number of values.

Distribution

The way in which values of a variable or frequencies of outcomes are spread out or dispersed over a range of values.