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Chapter 2: Q.14 (page 88)

Sketch the curve corresponding to each of the following specific distribution shapes.

a. Bell-shaped

b. Triangular

c. Reverse J shaped

d. Uniform

Short Answer

Expert verified

(a)

(b)

(c)

(d)

Step by step solution

01

Part (a) Step 1: Given information

The given distribution shape is bell-shaped.

02

Part (a) Step 2: Explanation

The number of peaks in distribution, as well as its symmetry, skewness, and uniformity, are used to describe its shape.

The bell shape graph is provided.

03

Part (b) Step 1: Given information

The given distribution shape is triangular.

04

Part (b) Step 2: Explanation

The number of peaks in distribution, as well as its symmetry, skewness, and uniformity, are used to describe its shape.

The triangular graph is as follows:

05

Part (c) Step 1: Given information

The given distribution shape is reverse J shaped.

06

Part (c) Step 2: Explanation

The number of peaks in distribution, as well as its symmetry, skewness, and uniformity, are used to describe its shape.

The figure depicts the reverse J shaped graph (3)

07

Part (d) Step 1: Given information

The given distribution shape is uniform.

08

Part (d) step 2: Explanation

The number of peaks in distribution, as well as its symmetry, skewness, and uniformity, are used to describe its shape.

The uniform graph is as follows:

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