Calculate the mean and standard deviation from the following data

Time (Minutes) to complete an exam: 40, 38, 67, 84, 92, 43, 58, 57, 48, 50, 50, 74, 86Mean: (add up the scores = 787; then divide by the number of participants = 13) 60.54 (to 2 decimal places)Standard deviation (assuming the total population is used): 17.64(take the mean (60.54) away from each score in the results, then square every answer and add them together (4047.21), before dividing by 13 (N) - the total number of participants. This is the variance (311.32). Now square root the answer for standard deviation)

AK
Answered by Annabelle K. Psychology tutor

1883 Views

See similar Psychology A Level tutors

Related Psychology A Level answers

All answers ▸

Outline the key features of the working memory model (6 marks)


Briefly evaluate interference as an explanation of forgetting


What is the working memory model?


To what extent can psychology be considered a science? (8 marks)


We're here to help

contact us iconContact usWhatsapp logoMessage us on Whatsapptelephone icon+44 (0) 203 773 6020
Facebook logoInstagram logoLinkedIn logo

© MyTutorWeb Ltd 2013–2025

Terms & Conditions|Privacy Policy
Cookie Preferences