Скачать или смотреть Boards की तैयारी🔥Statistics | Class-10th | Ex-13.1 Q6 To Q9 | MATHCORE | New NCERT | CBSE | 2024-25|

Boards की तैयारी🔥Statistics | Class-10th | Ex-13.1 Q6 To Q9 | MATHCORE | New NCERT | CBSE | 2024-25|

Class-10th,Ch-13 || Intro To Statistics One Shot Video || New NCERT || CBSE || 2024-25 || MATHCORE |
1. Data Types
Primary Data: Data collected firsthand.
Secondary Data: Data collected from other sources.
2. Measures of Central Tendency
Mean: The average of given data.
Median: The middle value when data is arranged in order.
Mode: The most frequently occurring value.
3. Frequency Distribution
Class Interval: A range of values in grouped data.
Class Width: The difference between the upper and lower class limits.
Class Mark: The midpoint of a class interval.
Cumulative Frequency: The sum of frequencies up to a certain class.
4. Graphical Representation
Histogram: A bar graph showing frequency distribution.
Frequency Polygon: A line graph connecting midpoints of class intervals.
Ogive (Cumulative Frequency Curve): A curve that represents cumulative frequency.
5. Mean Calculation Methods
Direct Method: Using the formula
Mean
)×h
Where:
𝐿
L = lower boundary of modal class

= frequency of modal class
= frequency before modal class
= frequency after modal clas
h = class width
7. Median Calculation
Using Cumulative Frequency Table
Formula:
Median
Median
h = class width
. Data and Its Types
Raw Data: Data in its original form, without organization.
Grouped Data: Data organized into class intervals.
Ungrouped Data: Data presented as individual values.
Qualitative Data: Non-numeric data (e.g., colors, names).
Quantitative Data: Numeric data (e.g., marks, height).
2. Frequency Distribution Terms
Lower Class Limit: The smallest value in a class interval.
Upper Class Limit: The largest value in a class interval.
Class Width (Size): Difference between the upper and lower class limits.
Class Midpoint (Class Mark):
Class Mark
=
Lower Limit
+
Upper Limit
2
Class Mark=
2
Lower Limit+Upper Limit
Relative Frequency:
Frequency of a class
Total frequency
×
100
Total frequency
Frequency of a class
×100
Cumulative Frequency: Running total of frequencies.
3. Measures of Central Tendency
Mean (Arithmetic Mean):
Mean
Median: The middle value of the ordered dataset.
Mode: The most frequently occurring value in the dataset.
4. Methods to Find Mean
Direct Method: Using the formula
5. Median Calculation for Grouped Data
Cumulative Frequency Table: Used to find the class containing the median.
Median Formula:
Median
Key Terms:
L = lower boundary of the median class
n = total frequency
CF = cumulat
h = class width
6. Mode Calculation for Grouped Data
Mode Formula:
Mode
= frequency after modal class
h = class width
7. Graphical Representation
Histogram: A bar graph representing frequency distribution.
Frequency Polygon: A line graph connecting midpoints of class intervals.
Cumulative Frequency Curve (Ogive): A graph showing cumulative frequency.
Less Than Ogive: Plots cumulative frequency for "less than" values.
More Than Ogive: Plots cumulative frequency for "more than" values.
Intersection of Ogives: The median is found where the two ogives intersect.
PLAYLISTS:
Ch-1 Real Numbers Playlist:    • Maths | Ncert |Class 10 | Chapter 1(Real n...  
Ch-2 Polynomials Playlist:    • Maths | Ncert |Class 10 | Chapter 2(Polyno...  
Ch-3 Linear equations in two variables Playlist:    • Ch-3 Pair Of Linear Equations In Two Varia...  
Ch-4 Quadratic Equations Playlist:    • Ch-4 Maths, Quadratic Equations , Accordin...  
Ch-5 Arithmetic Progressions Playlistst:    • Class-10th, Arithmetic Progreesions Comple...  
Ch-6 Triangles Playlist:    • Class-10th || Triangles || Easy Methods ||...  
Ch-7 Coordinate Geometry Playlist:    • Coordinate Geometry || Class-10th || New N...  
Ch-8 Intro To Trigonometry Playlist:    • Class-10th, Intro To trigono || New NCERT ...  
Ch-9 Applications Of Trigonometry Playlists:    • Applications Of Trigonometry|| Class-10th ...  
Ch-10 Circles Playlist:    • Class-10th || Circles,Chapter-10 || Zero T...  
Ch-11 Areas Related to circles Playlist:    • Class-10th || Chapter-11 ,Areas Related To...  
Ch-12 Surface areas And Volumes Playlist:    • Surface Areas and volumes || Class-10th ||...  
Ch-13 Statistics Playlist:    • Class-10th || STATISTICS || NEW NCERT || M...  
Ch-14 Probability Playlist:    • Class-10th || PROBABILITY || NEW NCERT || ...  

Timestamps:
00:20 intro
Outro

Thank You
Regards
Mathcore By Mukul Sir