4. Suppose a company has employee annual salary data as follows. - For the interval $\$ 1$ to $\$ 25,000,5$ employees; - for the interval $\$ 25,001$ to $\$ 50,000,15$ employecs; - for the interval $\$ 50,001$ to $\$ 75,000,25$ cmployees; - for the interval $\$ 75,001$ to $\$ 100,000,25$ employecs; - for the interval $\$ 100,001$ to $\$ 125, 000,35$ employees; - and for the interval $\$ 125,001$ to $\$ 150,000,30$ employees. (a) Which direction, if any, is this data skcwed? [Hint: Draw a graph of the distribution. Sec if that gives you an insight.] (b) Which is likely larger for this dataset, the mean or the median? S.P.PB. 251

4. Suppose a company has employee annual salary data as follows. - For the interval $\$ 1$ to $\$ 25,000,5$ employees; - for the interval $\$ 25,001$ to $\$ 50,000,15$ employecs; - for the interval $\$ 50,001$ to $\$ 75,000,25$ cmployees; - for the interval $\$ 75,001$ to $\$ 100,000,25$ employecs; - for the interval $\$ 100,001$ to $\$ 125, 000,35$ employees; - and for the interval $\$ 125,001$ to $\$ 150,000,30$ employees. (a) Which direction, if any, is this data skcwed? [Hint: Draw a graph of the distribution. Sec if that gives you an insight.] (b) Which is likely larger for this dataset, the mean or the median? S.P.PB. 251

Database System Concepts

7th Edition

ISBN:9780078022159

Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Chapter1: Introduction

Section: Chapter Questions

Problem 1PE

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Question

4. Suppose a company has employee annual salary data as
follows.
- For the interval $\$ 1$ to $\$ 25,000,5$ employees;
for the interval $\$ 25,001$ to $\$ 50,000,15$ employecs;
for the interval $\$ 50,001$ to $\$ 75,000, 25$ cmployees;
- for the interval $\$ 75,001s to $\$ 100,000,25$ employecs;
- for the interval $\$ 100, 001$ to $\$ 125,000, 35$
employees;
- and for the interval $\$ 125,001$ to $\$ 150,000,30$
employees.
(a) Which direction, if any, is this data skcwed? [Hint:
Draw a graph of the distribution. Sec if that gives you an
insight.]
(b) Which is likely larger for this dataset, the mean or the
median?
S.P.PB. 251

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