Data analysis and Additional topics

Question 1

Of means

Answer 1

multiplcan

Question 2

The word percent means, Ex. what is 14% of 83,

Answer 2

divided by 100, translates to x=14 divided by 100 times 83

Question 3

Percent change formula.

Answer 3

Amount of change / original value * 100%

Question 4

Ratio and proprotnality are both , Ex what is the ratio of x to y.

Answer 4

are both just fractions, x/y

Question 5

When y and x are directly proportional

Answer 5

When y and x are directly proportional (basically just ratios)

Question 6

Average =

Answer 6

sum of values / number of values.

Question 7

Sum of values =

Answer 7

= average values x number of values

Question 8

Median is

Answer 8

is the middle value in an ordered list of numbers

Question 9

Mode is

Answer 9

is the number that appears most in a list

Question 10

Range is

Answer 10

is the difference between the largest and smallest value in a set

Question 11

Mean =

Answer 11

Average, adding all number in a set / number of values.

Question 12

Stanard deviation is

Answer 12

s a measure of variability: the higher a data set’s deviation, the greater it’s variability. Variability refers to how far the values in a set are from the mean.

Question 13

In a list of consecutive patterned numbers, the median is

Answer 13

is the same as the average

Question 14

Desining and interpreting expermiens and studies. There are two things a study needs to make sure there are no intervention,

Answer 14

first is randomization. 2nd is sample size and confidence. This kind of question qill also sometimes make mention of a studsy’s margin of error or confidence interval.

Question 15

Surface area of a solid is

Answer 15

is the sun of the areas of each of its faces