z-score for 9 - of the following set of numbers (7, 9, 9, 9, 10, 11, 12, 12, 14, 14 ).

Find the z-score for 9 - of the following set of numbers (7, 9, 9, 9, 10, 11, 12, 12, 14, 14 ).

in Statistics Answers by

Your answer

Your name to display (optional):
Privacy: Your email address will only be used for sending these notifications.
Anti-spam verification:
To avoid this verification in future, please log in or register.

1 Answer

The mean of the given 10 values is 10.7. The variance is 2.405 and the standard deviation=1.55 approx.

The Z score for 9 is (9-10.7)/1.55=-1.096 approx. (This corresponds to 0.1393 or 13.93%.)

by Top Rated User (1.2m points)

Related questions

2 answers
Find the mean of the following set of numbers. 14 0 2 4
asked Jun 10, 2022 in Geometry Answers by anonymous | 408 views
1 answer
Consider the following set of numbers 15; 15; 13; 13; 13; 14
asked May 1, 2020 by George | 444 views
Welcome to MathHomeworkAnswers.org, where students, teachers and math enthusiasts can ask and answer any math question. Get help and answers to any math problem including algebra, trigonometry, geometry, calculus, trigonometry, fractions, solving expression, simplifying expressions and more. Get answers to math questions. Help is always 100% free!

Most popular questions within the last 3000 days

  1. 50+50-25X0+2+2= (19)
  2. it takes 10 road workers 5 days to complete a road repair when working 2 hours a day.Working at the same pace,how many days will it take 2 people working 5 hours a day to finish it? (3)
  3. Solve 15 -1(12÷4+1)? (4)
  4. 8:4(5+2) (3)
  5. How can i represent 1/3; 3/3; 7/3; 10/3 and 15/3 on a number line? (1)

Most popular tags

87,516 questions
100,279 answers
2,420 comments
732,723 users