163 results for "sum".

Question in Julie's workspace
Practice use of summation notation for regression question.
rebelmaths

Question in Stats
This question assesses learners' ability to:
 construct a confidence interval for a proportion given corresponding summarised data;
 predict the sample size required to limit the margin of error to a given value.

Question in Madalyn's workspace

Question in Engineering Statics
Add three vectors by determining their scalar components, summing them and then resolving the rectangular components to find the magnitude and direction of the resultant

Question in Engineering Statics
Find the sum of two couples in a plane.

Question in Engineering Statics
Find the sum of two 2dimensional vectors, graphically and exactly using the parallelogram rule.

Question in Engineering Statics
Add three vectors by determining their scalar components, summing them and then resolving the rectangular components to find the magnitude and direction of the resultant.

Exam (9 questions) in Koutilya
This is for the Summer Bridge Course in Mathematics . This exam will test their previous knowledge.

Question in CHY1201  SpectroscopyQuestion requires students to themselves calculate how many electrons are in the conjugated system for the molecules included in this question. As is standard for applications of the "particle in a box" model, the embedded assumption is that one electron is donated to the pisystem by each carbon within the conjugated chain. Students instructed to assume that there are 22 conjugated electrons in Betacarotene.

Question in HSS8005
No description given

Question in Matemáticas
No description given

Question in STAT7008
rebelmaths
Printing errors in the work produced by a particular film occur randomly at an average rate of p per page.
i.What is the probability that a one page document will contain x1 printing error(s)?
ii.If a n page document is printed, calculate the probability of having more than x2 errors. Assume a Poisson distribution. 
Exam (2 questions) in Howtos
This exam turns off all the feedback options, so students know nothing about how they've done.

Question in Content created by Newcastle University
Calculations of the lengths of two 3D vectors, the distance between their terminal points, their sum, difference, and dot and cross products.

Question in Content created by Newcastle University
Elementary operations on vectors; sum, modulus, unit vector, scalar multiple.

Question in Content created by Newcastle University
Minitab was used to fit both an AR(1) model and an AR(2) to a stationary series. A table is given summarising the results obtained from Minitab. Choose the most appropriate model and make a forecast based on that model.

Question in Content created by Newcastle University
Approximating integral of a quadratic by Riemann sums . Includes an interactive graph in Advice showing the approximations given by the upper and lower sums and how they vary as we increase the number of intervals.

Question in Content created by Newcastle University
Approximating integral of a quadratic by Riemann sums . Will include an interactive graph in Advice showing the approximations given by the upper and lower sums and how they vary as we increase the number of intervals.

Question in Content created by Newcastle University
No description given

Question in Content created by Newcastle University
Given sum of sample from a Normal distribution with unknown mean $\mu$ and known variance $\sigma^2$. Find MLE of $\mu$ and one of four functions of $\mu$.

Question in Content created by Newcastle University
Finding probabilities from a survey giving a table of data on the alcohol consumption of males. This can be easily adapted to data from other types of surveys.

Question in Content created by Newcastle University
Approximating integral of a quadratic by Riemann sums . Includes an interactive graph in Advice showing the approximations given by the upper and lower sums and how they vary as we increase the number of intervals.

Question in Content created by Newcastle University
Approximating integral of a linear function by Riemann sums . Includes an interactive graph in Advice showing the approximations given by the upper and lower sums and how they vary as we increase the number of intervals.

Question in Content created by Newcastle University
Approximating integral of a linear function by Riemann sums . Includes an interactive graph in Advice showing the approximations given by the upper and lower sums and how they vary as we increase the number of intervals.

Question in Content created by Newcastle University
Uses the $\chi^2$ test to see if there is any significant difference in preferences.

Question in Content created by Newcastle University
Find a regression equation.

Exam (4 questions) in Content created by Newcastle University
Approximate the integral of a function by Riemann sums.

Question in Content created by Newcastle University
Simple probability question. Counting number of occurences of an event in a sample space with given size and finding the probability of the event.

Question in Content created by Newcastle University
Power series solution of $y''+axy'+by=0$ about $x=0$.

Question in Content created by Newcastle University
Two ordered data sets, each with 10 numbers. Find the sample standard deviation for each and for their sum.