# PSYC 4700 CU Week 2 Frequency Distributions Percentiles & Graphs Worksheet

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Mathematics

PSYC 4700

Capella University

PSYC

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PSYC4700 - Statistics for the Behavioral Sciences

Week 2: Frequency Distributions, Percentiles, and
Graphical Representations
Complete the following problems within the Word document. (Do not submit other files.) Show
clearly visible. (You may want to highlight your answer or use a different font color to set it
apart.)
Submit the document to your instructor by Sunday, 11:59 p.m. central time.

Problem Set 2.1: Grouped or Ungrouped
Criterion: Explain the identification of types of data.
Instructions: Fill in the table below. For each example, state whether it is grouped or
ungrouped and why.

Example
The time (in seconds) it takes
100 children to complete a
cognitive skills game.

Grouped or Ungrouped
Ungrouped

Why
No groups exist

The number of single mothers grouped
with 1, 2, 3, or 4 children.

Four groups exist

The number of teenagers
who have experimented with
smoking (yes, no).

grouped

Two groups exist

The age (in years) of
freshman students in a local
college.

ungrouped

No groups exist

(Assignment continues on next page.)

1

PSYC4700 - Statistics for the Behavioral Sciences

Problem Set 2.2: Frequencies and Percent
Criterion: Identify frequencies and percent.
Instructions: State whether a cumulative frequency, relative frequency, relative percent,
cumulative relative frequency, or cumulative percent is most appropriate for describing the
following situations. For cumulative distributions, indicate whether these should be summarized
from the top down or from the bottom up.
Data:
1. The frequency of businesses with at least 20 employees: ____
Cumulative frequency . Should be summarized from the bottom up.______
2. The frequency of college students with less than a 3.0 GPA: __
Cumulative fr...

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