If **a** data set has an even **number** **of** observations, **the** **median**
**a**. can not be determined
**b**. **is** **the** **average** value **of** **the** two middle items
**c**. must be **equal** **to** **the** mean
**d**. **is** **the** **average** value **of** **the** two middle items when all items are arranged in

**The** central tendency **of** **a** set **of** measurements, i.e., **the** tendency **of** **the** data **to** cluster **or** **to** center about certain **numerical** **values**.

When studying **the** simultaneous responses **to** two categorical questions, we should set up **a**
**a**. contingency **table**.
**b**. **frequency** distribution **table**.
**c**. cumulative percentage distribution **table**.
**d**.

**To** approximate **the** **number** **of** classes when developing **a** **frequency** **table** for measurement data, simply divide **the** size **of** **the** population by **the** sample size **or** use ten classes, whichever **is** **the** smaller.

T 10.

**To** find **the** **median**, you must place all **the** data in **numerical** order. **The** **median** **is** **the** value **of** **the** middle item. In this case, there **is** an even **number** **of** measurements, 50.

321670 Statistics Questions: calculate probability; relative **frequency** **table**; range, **median**, mean, and mode Statistics Questions: calculate probability; relative **frequency** **table**; range, **median**, mean, and mode See attached file.
**1**.Â Â Â Â Â Â

Here **the** homes states are purely **a** nominal variable are no **numerical** **values** are associated with it. **Average** like mean / **median** **is** suitable when **the** **values** are ordinal **or** numeric in nature.

**The** **number** **of** books read by **the** 23 participants **is** as follows:
10 9 6 2 5 3 9 **1** 6 3 10 4 7 6 3 5 6 2 6 5 3 7 2
**Number** **of** books read **Frequency**
**1**-2
3-4
5-6
7-8
9-10
Answers
**a**. Complete **the** **frequency** **table**.

Construct **a** probability distribution **table** for **the** **number** **of** orders received per day.
**b**. **Graph** **the** probability distribution using **a** relative **frequency** histogram.
**c**.

**A** random variable that may assume only **a** finite **number** **or** an infinite sequence **of** **values** **is** said **to** be discrete; one that may assume any value in some interval on **the** real **number** line **is** said **to** be continuous.
22.