Exam (elaborations)
OCR A+Level Biology Paper 1 (Priority Topics) (1)
- Course
- Institution
OCR A+Level Biology Paper 1 (Priority Topics) (1)
[Show more]
Seller
Follow
denicetho
Content preview
OCR Maths Statistics 1 A+ levelSolutions
Frequency= - ANS-Frequency density × class width
Frequency polygon - ANS-Join the midpoints of the top of the bars
Cumulative frequency is plotted... - ANS-at the upper bound
Median - ANS-½(n+1)th value
x̄= - ANS-∑(x-a)/n + a
Interquartile range= - ANS-Upper quartile - lower quartile
Positive skew - ANS
Negative skew - ANS
Outlier - ANS-1.5 times the interquartile range, above the upper quartile or below the
lower quartile
Variance: σ² - ANS
Standard deviation: σ - ANS-It is the square root of variance
Variance of data in a frequency table - ANS-∑x²f/∑f - x̄²
Sample space - ANS-All the possible outcomes
If A is an event, A' is the complement of A - ANS-P(A) + P(A') = 1
Addition law of mutually exclusive events - ANS
Conditional probability - ANS
The benefits of buying summaries with Stuvia:
Guaranteed quality through customer reviews
Stuvia customers have reviewed more than 700,000 summaries. This how you know that you are buying the best documents.
Quick and easy check-out
You can quickly pay through credit card or Stuvia-credit for the summaries. There is no membership needed.
Focus on what matters
Your fellow students write the study notes themselves, which is why the documents are always reliable and up-to-date. This ensures you quickly get to the core!
Frequently asked questions
What do I get when I buy this document?
You get a PDF, available immediately after your purchase. The purchased document is accessible anytime, anywhere and indefinitely through your profile.
Satisfaction guarantee: how does it work?
Our satisfaction guarantee ensures that you always find a study document that suits you well. You fill out a form, and our customer service team takes care of the rest.
Who am I buying these notes from?
Stuvia is a marketplace, so you are not buying this document from us, but from seller denicetho. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy these notes for $9.65. You're not tied to anything after your purchase.
Can Stuvia be trusted?
4.6 stars on Google & Trustpilot (+1000 reviews)
63613 documents were sold in the last 30 days
Founded in 2010, the go-to place to buy study notes for 14 years now