Stats

Question 1

Counting Consecutive Multiples

Answer 1

Question 2

Counting “Non-Inclusive” Consecutive Integers

Answer 2

Last # - First #

Must include one but not both endpoints.

Question 3

Counting Consecutive Integers between First & Last #’s in a Set

or

Counting Consecutive Integers non-inclusive

Answer 3

(First # - Last #) -1

Question 4

Average

(Balanced Point Method)

Answer 4

(First + Last) / 2

Question 5

Finding Median of Large (Odd #’d) Set

Answer 5

(n+1)/2 ⇒ position of median

Question 6

Finding Median of Large (Even #’d) Set

Answer 6

(n+2)/2 ⇒ position of two numbers that average to the median

Question 7

Range

Answer 7

= (highest # in set) - (lower # in set)

Question 8

Mode

Answer 8

= # within the set that appears the most times

or

two or more #’s that occur within the set an equal amount times

but still more than any other # in the set

Question 9

Mean = Median

when…

Answer 9

In a set of evenly spaced integers

Question 10

Finding the quantity of integers

Answer 10

[(last-first)/2] +1

Question 11

When the weight of each data point is expressed a percent?

The formula for weighted avg becomes…

Answer 11

(Percent ₁) x (Data Point ₁) + (Percent ₂) x (Data Point ₂) …