Durga’s iPhone

23:50

hello everyone

Julius Ngwa

24:38

Wednesdays Sessions

Julius Ngwa

29:32

Minimum = Smallest Value

Julius Ngwa

29:43

Maximum = Largest

Julius Ngwa

32:24

English Class vs. History Class

Julius Ngwa

33:49

High Scores in the History Class compared to the English Class

Julius Ngwa

34:29

Side by Side Comparison about your Day

Julius Ngwa

34:31

Data

Julius Ngwa

35:36

Chapter 3

Julius Ngwa

35:43

Summarize our Data using Statistics

Julius Ngwa

36:38

Center of your Data is

Julius Ngwa

37:42

Sample: X-bar

Julius Ngwa

37:53

Population: Mu

Julius Ngwa

39:57

Two Modes = Bi-modal

Julius Ngwa

40:28

No Mode

Julius Ngwa

41:58

Median

Julius Ngwa

42:06

Mean

Julius Ngwa

42:08

Mode

Julius Ngwa

42:09

Median

Julius Ngwa

44:05

Two numbers in the Middle

Julius Ngwa

44:13

n = 6 (Even number)

Mylanda Bradley

45:35

I cant hear him anymore

Mylanda Bradley

45:43

Ohh nevermind lol

Julius Ngwa

49:57

Class of 20 Students

Julius Ngwa

50:11

Reported the Number of Siblings that they Have

Julius Ngwa

51:40

The Mean for Grouped Data

Julius Ngwa

56:17

X values are Range of Values

Julius Ngwa

56:21

0 - 49 Range

Julius Ngwa

56:31

Value that would represent that Class 0 - 49

Durga’s iPhone

56:33

I have to go gn everyone

Julius Ngwa

56:37

Midpoint

Julius Ngwa

56:47

(0 + 49) /2

Julius Ngwa

57:29

X values = Midpoint

Julius Ngwa

57:35

f values = Frequency

Deanna Gregorich

58:39

This is confusing me even more

Julius Ngwa

01:00:14

Grouped Data

Julius Ngwa

01:01:10

10 Students

Julius Ngwa

01:03:32

Single Data Points

Julius Ngwa

01:03:36

Grouped Data

Julius Ngwa

01:07:01

Calculator - Single Data Points

Julius Ngwa

01:07:07

Grouped Data

Julius Ngwa

01:08:09

70 72 75 79 84

Julius Ngwa

01:08:28

Setup the Editor

Julius Ngwa

01:08:41

STAT

Julius Ngwa

01:09:19

2nd 1

Julius Ngwa

01:09:23

Commar

Julius Ngwa

01:10:20

STAT

Julius Ngwa

01:10:32

PRESS ENTER (EDIT)

Nidhi Goyal

01:11:12

how can we erase previous list data?

Julius Ngwa

01:11:45

Clear Enter

Nidhi Goyal

01:11:50

got it , thank u

Julius Ngwa

01:12:59

STAT

Julius Ngwa

01:13:01

CALC

Julius Ngwa

01:13:41

FreqList = Grouped Data

Julius Ngwa

01:13:57

Mean = 76

Julius Ngwa

01:14:02

Sum = 390

Julius Ngwa

01:14:08

Standard Deviation

Julius Ngwa

01:14:12

n = 5

Julius Ngwa

01:14:29

Five number Summary

Julius Ngwa

01:15:00

Min = 70 Q1 = 71 Med = 75 Q3 = 81.5 Max = 84

Julius Ngwa

01:15:08

Single Data Points

Nidhi Goyal

01:15:30

how to remember these commands ?

Nidhi Goyal

01:15:52

can we write down on paper in Exam?

Julius Ngwa

01:16:04

Cheat Sheat

Nidhi Goyal

01:16:31

ok

Julius Ngwa

01:16:43

Grouped Data

Julius Ngwa

01:17:14

Class Midpoints = X Values

Julius Ngwa

01:17:21

Frequencies = F Values

Julius Ngwa

01:17:31

Mean

Julius Ngwa

01:17:48

FreqList (X values and F values)

Julius Ngwa

01:18:00

STAT

Julius Ngwa

01:18:07

Press Enter (EDIT)

Julius Ngwa

01:18:21

Title (Clear Enter)

Julius Ngwa

01:18:40

L1 - X values

Julius Ngwa

01:18:44

L2 - F values

Julius Ngwa

01:19:45

STAT

Julius Ngwa

01:19:51

CALC

Julius Ngwa

01:20:01

1 VAR STAT

Julius Ngwa

01:20:44

Mean = 137

Julius Ngwa

01:21:06

n = 50 (Total Frequency)

Julius Ngwa

01:21:20

Five Number Summary

Julius Ngwa

01:21:52

Min = 25 Q1 = 75 Med = 125 Q3 = 175 Max = 275

Nidhi Goyal

01:22:18

can we change L1 name to X?

Nidhi Goyal

01:22:26

& L2 name to F?

Julius Ngwa

01:26:09

IQR = Interquartile Range

Julius Ngwa

01:29:29

Varies a lot more

Julius Ngwa

01:29:45

Spread is greater in St Louis compared to San Francisco

Deanna Gregorich

01:30:18

Deanna Gregorich

Nidhi Goyal

01:30:41

Nidhi Goyal

Breanna Held

01:30:41

Breanna Held

Janeesha Harcourt

01:30:44

Janeesha Harcourt

Erik Ludaway

01:30:50

Erik Ludaway

Julius Ngwa

01:37:32

Calculate the Variance and Standard Deviation

Julius Ngwa

01:37:37

Manually

Julius Ngwa

01:37:48

Calculator

Julius Ngwa

01:39:42

Deviation: Value - Mean

Julius Ngwa

01:40:08

How far is each point away from the Mean

Julius Ngwa

01:41:19

Deviations Squared

Julius Ngwa

01:41:49

Sum of the deviations squared is 40

Julius Ngwa

01:42:12

Sigma Squared (Population)

Julius Ngwa

01:43:00

Variance provides a measure on average how far each value is away from the Mean.

Julius Ngwa

01:43:30

Variance = 8

Julius Ngwa

01:46:15

Sample

Julius Ngwa

01:46:31

Table To summarize all these Symbols

Julius Ngwa

01:47:07

Context = Sample

Julius Ngwa

01:48:14

S-squared is the Variance for the Sample

Julius Ngwa

01:53:47

Symbols

Julius Ngwa

01:54:00

Symbols Extensively

Julius Ngwa

01:58:11

Variance

Julius Ngwa

01:58:52

2nd STAT

Julius Ngwa

01:59:45

Variance for the Population

Julius Ngwa

02:00:28

Standard Deviation for the Population

Julius Ngwa

02:00:50

1 VAR STAT

Julius Ngwa

02:03:51

Percentile

Julius Ngwa

02:05:35

Five Number Summary (Box Plot)

Julius Ngwa

02:06:38

Ascending Order

Erik Ludaway

02:08:15

No questions here

Deanna Gregorich

02:08:16

no

Breanna Held

02:08:25

no

Julius Ngwa

02:08:47

Position of the 1st Quartile

Julius Ngwa

02:10:44

Statistical Rule (Round Up)

Julius Ngwa

02:12:38

Min = 20

Julius Ngwa

02:12:45

Q1 = 24

Julius Ngwa

02:12:50

Median = 29

Julius Ngwa

02:12:57

Q3 = 34

Julius Ngwa

02:13:02

Max = 38

Julius Ngwa

02:13:12

Five number Summary. Using your Calculator

Julius Ngwa

02:14:53

Cannot Round up the 5 because 5 is already a Whole Number

Julius Ngwa

02:19:10

Position in your Data

Julius Ngwa

02:20:51

Z-score is how many standard deviations we are away from the mean

Julius Ngwa

02:25:40

Standardize these two test scores

Julius Ngwa

02:25:43

Z-scores

Julius Ngwa

02:25:48

Same Scale

Deanna Gregorich

02:27:52

Thanks!

Janeesha Harcourt

02:27:57

thank you, goodnight

Breanna Held

02:28:06

Thank you! have a good night! See you next week