UNIVERSITY OF THE WESTERN CAPE
Full Name:…………………..
STA211 PRACTICAL EVALUATION
Student No:…………………..
STA211 Excel PRAC 6 v2 (38 marks)
BINOMIAL DISTRIBUTIONS
Construct a binomial and cumulative binomial distribution using the data in Fig. 1 below:
Fig 1: Worksheet data for Prac 6 v2
To answer the questions, perform the following steps:
1. Open the Excel file Called, Prac_6_data_v2.xlsx, which is located your PC’s shared
drive/folder. You will be using this excel spread sheet to complete the questions below
2. Name the cells shown in the named ranges. NB!!! Use the named ranges in your formulas
where possible.
3. In the INITIAL SETUP table, replace the bracketed numbers with your answers. Answers
must also be calculated where the arrows are shown.
UNIVERSITY OF THE WESTERN CAPE
Full Name:…………………..
STA211 PRACTICAL EVALUATION
Student No:…………………..
a. Apply the following decimal place format to the following bracketed numbers:
i.
ii.
iii.
iv.
[1] – one decimal place
[2] – no decimal places
[3] – four decimal places
[4] – [15]– four decimal places
4. In the FORMULA table, enter the cell locations and formulas you used to calculate the
answers.
5. Construct a binomial distribution graph using a 2D clustered column chart in Excel. Give
your graph the title, “Binomial Distribution”. Hint: the i values should be on the x axis.
Instructions for submission
1) NB: Submit this question paper into the pigeon hole assigned to STA211 (below the staff member
photo’s) in the Statistics Department, 3rd Floor by ………… on 14/03/2013.
2) Save your Excel file in the following format: Prac6v2_student#
Example: Prac6v2_2360231
3) Email your Excel file to: sta211prac@gmail.com using your UWC email account (Novell Groupwise), the
email subject and body should be the SAME as you’re Excel file name in point 2. Above
Binomial Distribution information:
The probability of success on a single trial is equal to p, and failure is 1-p, which is denoted by q.
Binomial Distribution formula:
Binomial Excel Function:
BINOMDIST
Binomial Distribution Statistics:
Cumulative Binomial Distribution formula:
The cumulative distribution is created by summing the probabilities of the discrete probability distribution
from 0 up to i. This is denoted by ci where:
Cumulative Binomial Excel Function:
Can also make use of BINOMDIST