MedStats

Question 1

What is a factorial (!)?

e.g. 5!

Answer 1

Each number below or equal multiplied together

e.g. 5! = 5 x 4 x 3 x 2 x 1 = 120

Question 2

What are the three numbers associated with the summation symbol? (above, below, and to the right)

Answer 2

Above = upper limit
Below = lower limit
To the right = the expression being summer over

Question 3

What is the equation for a line?

Answer 3

Y = mx + b

Question 4

What do the m and b in y = mx + b stand for?

Answer 4

m = slope
b = y-intercept

Question 5

What number does the symbol e stand for? (what would e^3 equal?)

Answer 5

2.72 (e^3 = 20.085)

Question 6

How can e^3 also be written?

Answer 6

Exp(3)

Question 7

What is a number to the 0th exponent (e.g. 5^0)

Answer 7

1

Question 8

What is a number to a negative exponent (e.g. 5^-2)

Answer 8

The inverse (1 / 5^2)

Question 9

What is the inverse of the exponential function?

Answer 9

Natural log

Question 10

What can be done to ln(x) to get x on its own?

Answer 10

e ^ ln(x)

Question 11

To what is the log of 1 equal?

Answer 11

0

Question 12

To what is the log of 0 equal?

Answer 12

Undefined

Question 13

To what is the log of a negative number equal?

Answer 13

An imaginary number