Activity Z Has Estimates a = 5,b = 10,m =

question 8

Multiple Choice

Activity Z has estimates a = 5,b = 10,m = 7;activity X has estimates a = 4,b = 11,m = 6;and activity Y has estimates a = 3,b = 12,m = 8.Which of the following statements is best?

• A)Activity X is longer than Activity Y.
• B)Activity X has a higher standard deviation than Activity Z.
• C)Activity Z is shorter than Activity Y.
• D)Activity Y has a smaller variance than Activity Z.

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Definitions:

Middle Childhood

A developmental stage that generally includes children from 6 to 12 years of age, focusing on growth in cognitive, physical, and social domains.

First Grade

The initial stage of formal education in many educational systems, typically involving children aged 6 to 7 years.

Preschool

An educational establishment or learning environment providing early childhood education to children before they begin compulsory schooling at primary school.

Tabula Rasa

A philosophical theory that individuals are born without built-in mental content and that all knowledge comes from experience or perception.