The ages, a years, of the five members of the boy-band AlphaArise are such that (a
Question:
The ages, a years, of the five members of the boy-band AlphaArise are such that Σ(a − 21)2 = 11.46 and Σ(a − 21) = −6.
The ages, b years, of the seven members of the boy-band BetaBeat are such that Σ(b −18)2 = 10.12 and Σ(b −18) = 0.
a. Show that the difference between the mean ages of the boys in the two bands is 1.8 years.
b. Find the variance of the ages of the 12 members of these two bands.
Fantastic news! We've Found the answer you've been seeking!
Step by Step Answer:
a To find the mean age of the boys in AlphaArise we can use the formula for the mean of a set of num...View the full answer
Answered By
Ravi Tomar
I have 5 years of experience as an Agricultural Economics tutor. During this time, I have been able to successfully provide guidance to students in their studies and help them develop their knowledge and understanding of the subject. My approach to teaching has always been to combine academic learning with practical application, often drawing on my professional experience to help students better understand how the concepts they learn apply to the real world. I also focus on helping students develop critical thinking skills, enabling them to tackle problems independently and develop their own solutions. I have also been able to provide support on specific assignments, helping students to structure their work and ensure that it meets the required quality and standards.
0 Reviews
10+ Question Solved
Related Book For 
Cambridge International AS & A Level Mathematics Probability & Statistics 1 Coursebook
ISBN: 9781108407304
1st Edition
Authors: Dean Chalmers, Julian Gilbey
Question Posted:
