Maths and Computer Science

Question 1

Two fathers of computers

Answer 1

Charles Babbage and Alan Turing

Question 2

Who wrote the book 100 ingenious devices in what year?

Answer 2

Banu Musa in 850

Question 3

What is e (Euler’s number), to 15dp

Answer 3

2.7 1828 1828 45 90 45

Question 4

What is the factorial (!) function?

Answer 4

Multiply all whole numbers from our chosen number down to 1. Example: 4! = 4 × 3 × 2 × 1 = 24

Question 5

Define z-score and t-statistic

Answer 5

z-score: the signed number of population standard deviations (σ) by which the observation is above the population mean (μ)
t-statistic: the signed number of sample standard deviations (sd) by which the observation is above the sample mean (x-bar)