The following data represent the minimum waiting time (in seconds) for a sample of twenty customers waiting to be served by a teller of ABC bank. 9, 12, 15, 20, 21, 29, 33, 40, 45, 50, 55, 60, 63, 66, 25. Required; a. Construct a grouped frequency distribution for the data using class intervals 1-10, 11- 20, 30-40, etc. b. Using your frequency distribution, calculate the mean and standard deviation c. Using your frequency distribution, calculate the median and mode

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter10: Statistics
Section10.6: Summarizing Categorical Data
Problem 42PFA
icon
Related questions
Question

 3. The following data represent the minimum waiting time (in seconds) for a sample of twenty customers waiting to be served by a teller of ABC bank. 9, 12, 15, 20, 21, 29, 33, 40, 45, 50, 55, 60, 63, 66, 25.

Required;

a. Construct a grouped frequency distribution for the data using class intervals 1-10, 11- 20, 30-40, etc.

b. Using your frequency distribution, calculate the mean and standard deviation

c. Using your frequency distribution, calculate the median and mode. Dr. Godwin Musah

Expert Solution
steps

Step by step

Solved in 3 steps with 1 images

Blurred answer
Recommended textbooks for you
Glencoe Algebra 1, Student Edition, 9780079039897…
Glencoe Algebra 1, Student Edition, 9780079039897…
Algebra
ISBN:
9780079039897
Author:
Carter
Publisher:
McGraw Hill
Holt Mcdougal Larson Pre-algebra: Student Edition…
Holt Mcdougal Larson Pre-algebra: Student Edition…
Algebra
ISBN:
9780547587776
Author:
HOLT MCDOUGAL
Publisher:
HOLT MCDOUGAL