FREE Trial
Answered step by step
Verified Expert Solution
Link Copied!

Question

1 Approved Answer

Question abc The marks awarded to 42 students in an examination are summarized in the table. Marks 20-29 30-39 40-49 50-59 Frequency 5 '12 16

image text in transcribed

Question abc

image text in transcribed
The marks awarded to 42 students in an examination are summarized in the table. Marks 20-29 30-39 40-49 50-59 Frequency 5 '12 16 Q (a) Calculate the mean. [2 marks] (b) Find the 1st and 3rd quartile [6 marks] (-3) Hence, calculate the interquartile range [2 marks] l1 9

Step by Step Solution

There are 3 Steps involved in it

Step: 1

blur-text-image

Get Instant Access to Expert-Tailored Solutions

See step-by-step solutions with expert insights and AI powered tools for academic success

Step: 2

blur-text-image

Step: 3

blur-text-image

Ace Your Homework with AI

Get the answers you need in no time with our AI-driven, step-by-step assistance

Get Started

Recommended Textbook for

Mathematical Analysis And Its Applications Roorkee, India, December 2014

Mathematical Analysis And Its Applications Roorkee, India, December 2014

Authors: P N Agrawal, R N Mohapatra, Uaday Singh, H M Srivastava

1st Edition

813222485X, 9788132224853

More Books

Students also viewed these Mathematics questions

Question

★★★★★
The model you found in Exercise 22 is a relationship noted in the 17th century by Kepler as his Third Law of Planetary Motion. It was subsequently explained as a consequence of Newton's Law of...

Answered: 1 week ago

Question

★★★★★
Using Composite Blood Samples When doing blood testing for HIV infections, the procedure can be made more efficient and less expensive by combining samples of blood specimens. If samples from three...

Answered: 1 week ago

Question

★★★★★
Carloads of customers arrive at a single-server station in accordance with a Poisson process with rate 4 per hour. The service times are exponentially distributed with rate 20 per hour. If each...

Answered: 1 week ago

Question

★★★★★
Two identical spheres with mass m are hung from silk threads of length L, as shown in Fig. 21.44. Each sphere has the same charge, so q1 = q2 = q. The radius of each sphere is very small compared to...

Answered: 1 week ago

Question

★★★★★
In preparing a statement of cash flows, a conversion of bonds into ordinary shares will be reported in Select one: O a. The financing section. b. The operating section. c. A separate note or...

Answered: 1 week ago

Question

★★★★★
when preparing an income statement do you include utilites payable of as an expense, or do you wait until It is actually paid. o

Answered: 1 week ago

Question

★★★★★
Refer to Case Study D - The presentation You must create presentation (report) that will promote the organisation's products/services to the business community at a local trade event. This is raising...

Answered: 1 week ago

Question

★★★★★
You act for the vendor of a travel agency business known as "Golden Wings Travel". The name of the vendor is Beaumont Investments Pty Ltd, the trustee of the Beaumont Family Trust, and the company...

Answered: 1 week ago

Question

★★★★★
1. The surface area of an inflating weather balloon is described by A(x) = 4x 1 where x is the number of seconds and A is measured in L. a) Determine the average rate of change between 3 and 9 sec....

Answered: 1 week ago

Question

★★★★★
4. The exit gas from an alcohol fermenter is an air-CO mixture containing 10 mol% CO that is to be absorbed in a 5.0 M triethanolamine (TEA) solution containing 0.020 mol CO2/mol TEA. The column...

Answered: 1 week ago

Question

★★★★★
An aluminum foil manufacturer wants to improve the quality of his product and is trying to develop a probability model for the flaws that occur in a sheet of foil. Assume that X, the number of flaws...

Answered: 1 week ago

Question

★★★★★
a. Broussard Skateboard's sales are expected to increase by 25% from $8.4 million in 2016 to $10.50 million in 2017. Its assets totaled $4 million at the end of 2016. Broussard is already at full...

Answered: 1 week ago

Question

★★★★★
2. A Soviet invasion of Poland would lead to the severing of diplomatic relations between the United States and the Soviet Union.

Answered: 1 week ago

Question

★★★★★
1. Diplomatic relations between the United States and the Soviet Union would be severed in 1993 than that

Answered: 1 week ago

Question

★★★★★
1. To provide knowledge about various influencing techniques in communication situations.

Answered: 1 week ago

Previous Question Next Question