1.2 Study Guide Flash Cards

Question 1

What are the prefixes in the metric system

Answer 1

giga-
mega-
kilo-
heka-
deca-
Base Unit
deci-
centi-
milli-
micro-
nano-
pico-
femto-
atto-

Question 2

Metric system Prefix Units and Scientific notation value

Answer 2

giga- G- 10^9
mega- M- 10^6
kilo- k- 10^3
heka- h- 10^2
deca- da- 10^1
Base Unit- 10^0
deci- d- 10^-1
centi- c- 10^-2
milli- m- 10^-3
micro- u- 10^-6
nano- n- 10^-9
pico- p- 10^-12
femto- f- 10^-15
atto- a- 10^-18

Question 3

What is the relationship between the metric prefixes and base units?

Answer 3

The prefixes in the metric system tell you how many of the base unit is being represented.

Question 4

What is mass?

Answer 4

How much matter an object has.

Question 5

What is volume?

Answer 5

How much space and object takes up.

Question 6

What is length?

Answer 6

How long and object is.

Question 7

What is temperature?

Answer 7

How hot or cold something is.

Question 8

What is the base unit for length?

Answer 8

Meters or m.

Question 9

What is the base unit for mass?

Answer 9

Grams or g.

Question 10

What is the base unit for volume?

Answer 10

Liters or l.

Question 11

What is the base unit for temperature?

Answer 11

Kalve or K.

Question 12

What is the order of finding Standard Deviation?

Answer 12

MEAN, VARIANCE, STANDARD DEVIATION!

Question 13

How do you solve for the variance.

Answer 13

To calculate the variance, take each difference, square it, and then average the result.

Question 14

How do you solve for the mean or average?

Answer 14

Add all of the numbers in a given data set and then divide the sum by the amount of original numbers.

Question 15

How do you calculate Standard Deviation?

Answer 15

To calculate Standard Deviation you must find the variance. Then you must find the square root of the variance.

Question 16

Find the variance.
3, 7, 8, 10, 16
Show your work.

Answer 16

1. Find the mean of the data set.
   (3+7+8+10+16)/5
   44/5
   8.8 = the mean
   Find the difference between each of the data points and the mean.
   8.8-3= 5.8
   8.8-7= 1.8
   8.8-8= 0.8
   10-8.8= 1.2
   16-8.8= 7.2
   Take each difference and square them.
   5.8^2 = 33.64
   1.8^2 = 3.24
   0.8^2 = 0.64
   1.2^2 = 1.44
   7.2^2 = 51.84
   Find the mean of the data set.
   (33.64+3.24+0.64+1.44+51.84)/5
   90.8/5
   18.16= the variance.

Question 17

What is Standard Deviation?

Answer 17

A measure that is used to quantify the amount of variation in a set of data.

Question 18

What is a independent variable?

Answer 18

An independent variable is exactly what it sounds like. It is a variable that stands alone and isn’t changed by the other variables you are trying to measure.

Question 19

What is a dependent variable?

Answer 19

A dependent variable is the variable that changes as a result of the independent variable manipulation.

Question 20

What variable goes on the X-axis?

Answer 20

The independent variable.

Question 21

What variable goes on the y-axis?

Answer 21

the dependent variable.

Question 22

Should a scale on graph be condensed or spread out?

Answer 22

Spread out.

Question 23

What are values plotted with?

Answer 23

Points.

Question 24

What should go at the top of a graph that summarizes what the graph is about?

Answer 24

The Title!

Question 25

What are the different types of lines on a graph?

Answer 25

direct, indirect, constant, non-linear, peak

Question 26

What is the mean?

Answer 26

The average of a set of data points.

Question 27

What is the median?

Answer 27

The middle of a set of data points.

Question 28

Find the mean of the following data set: 16, 15, 20, 25, 40, 72, 86, 55, 52, 36 Show your work.

Answer 28

1. Add up the numbers in the data set. 16+15+20+25+40+72+86+55+52+36 2. Divide the sum of the numbers by the amount of numbers originally in the data set. 417/10 3. The mean or average of the data set is 41.7

Question 29

Find the median of the following data set: 16, 15, 20, 25, 40, 72, 86, 55, 52, 36 Show your work.

Answer 29

1. Order the numbers in the data set from least to greatest. 15, 16, 20, 25, 36, 40, 52, 55, 72, 86 2. There are ten numbers, the fifth number is the median. 3. The median of the data set is 38.

Question 30

What is the range of a data set?

Answer 30

The range of a data set is the difference between the maximum and the minimum values.

Question 31

Find the range of the following data set: 16, 15, 20, 25, 40, 72, 86, 55, 52, 36 Show your work.

Answer 31

1. Find the largest and smallest number in the data set. 86 and 15 2. Find the difference between the two numbers 86-15= 3. The range is 71 for this data set.

Question 32

What is a direct relationship on a graph?

Answer 32

A direct relationship means that both variables increase together or both decrease together.

Question 33

What is a indirect relationship on a graph?

Answer 33

An indirect relationship is when one variable increases, the other decreases.

Question 34

What is a constant relationship on a graph?

Answer 34

A proportional relationship is a relationship with a constant ratio between two quantities.

Question 35

What is a non-linear relationship on a graph?

Answer 35

A nonlinear relationship between two variables is one for which the slope of the curve showing the relationship changes as the value of one of the variables changes.

Question 36

What is a peak relationship on a graph?

Answer 36

A peak is a point in the graph whose y -value is larger than the y -values of both of its immediate neighbors.

Question 37

Find the Standard Deviation. 3, 7, 8, 10, 16 Show your work.

Answer 37

1. Find the mean of the data set. (3+7+8+10+16)/5 44/5 8.8 = the mean 2. Find the difference between each of the data points and the mean. 8.8-3= 5.8 8.8-7= 1.8 8.8-8= 0.8 10-8.8= 1.2 16-8.8= 7.2 3. Take each difference and square them. 5.8^2 = 33.64 1.8^2 = 3.24 0.8^2 = 0.64 1.2^2 = 1.44 7.2^2 = 51.84 4. Find the mean of the data set. (33.64+3.24+0.64+1.44+51.84)/5 90.8/5 18.16= the variance. 5. Take the square root of the variance. 4.26 = The Standard Deviation

Question 38

Write a claim about forest B in relation to forest A.

Answer 38

Forest B is a healthier forest than forest A. In the data shown, forest B has larger rings each year by approximately 4 mm. This means that Forest B has a more suitable environment than forest A because per the information given larger rings mean more growth in a certain time period. More growth means a healthier environment,

Question 39

How many nanometers are in 4.5 cm

Answer 39

45,000000

Question 40

How many mm are in 72 micrometers

Answer 40

0.072 mm