Zazu123

1 Questions
1 Answers

0

692

2

+6

A difficult question for me to understand. In need of explanation on how to work out!

JAMIE and TARA fold T-shirts at a factory. They trialled over a number of occasions to find out how many T-shirts they could fold per minute. Their results are listed below.
JAMIE: Mean = 37/min and Standard deviation n-1 = 2/min
TARA: Mean read more ..

geno3141 ●●

Zazu123 Nov 17, 2014

+6

0

Thank you! that makes sense now :)

However how did you get 68%?

Zazu123Nov 17, 2014