Suppose You Observe a Baby Sitting in Front of a Mirror

question 134

Multiple Choice

Suppose you observe a baby sitting in front of a mirror. You now place a dot of rouge on the baby's nose. You see the baby look at the mirror, and then he crawls around the mirror to find the baby on the other side. Your best guess is that this baby is about how old?

• A) about 6 months of age
• B) about 12 months of age
• C) about 18 months of age
• D) 24 months of age

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Definitions:

Frequency Distribution

A summary of how often different values occur within a data set, usually presented in table or graph form.

Cumulative Frequency

The total of a frequency and all frequencies so far in a frequency distribution.

Relative Frequency

The ratio of the number of times a particular value occurs to the total number of occurrences.

Midpoint

The value exactly in the middle of a range, or the average of two numbers.