•  
agra,ahmedabad,ajmer,akola,aligarh,ambala,amravati,amritsar,aurangabad,ayodhya,bangalore,bareilly,bathinda,bhagalpur,bhilai,bhiwani,bhopal,bhubaneswar,bikaner,bilaspur,bokaro,chandigarh,chennai,coimbatore,cuttack,dehradun,delhi ncr,dhanbad,dibrugarh,durgapur,faridabad,ferozpur,gandhinagar,gaya,ghaziabad,goa,gorakhpur,greater noida,gurugram,guwahati,gwalior,haldwani,haridwar,hisar,hyderabad,indore,jabalpur,jaipur,jalandhar,jammu,jamshedpur,jhansi,jodhpur,jorhat,kaithal,kanpur,karimnagar,karnal,kashipur,khammam,kharagpur,kochi,kolhapur,kolkata,kota,kottayam,kozhikode,kurnool,kurukshetra,latur,lucknow,ludhiana,madurai,mangaluru,mathura,meerut,moradabad,mumbai,muzaffarpur,mysore,nagpur,nanded,narnaul,nashik,nellore,noida,palwal,panchkula,panipat,pathankot,patiala,patna,prayagraj,puducherry,pune,raipur,rajahmundry,ranchi,rewa,rewari,rohtak,rudrapur,saharanpur,salem,secunderabad,silchar,siliguri,sirsa,solapur,sri-ganganagar,srinagar,surat,thrissur,tinsukia,tiruchirapalli,tirupati,trivandrum,udaipur,udhampur,ujjain,vadodara,vapi,varanasi,vellore,vijayawada,visakhapatnam,warangal,yamuna-nagar
Z-Score Table

Z-Score Table

 

A Z-score is described as the number of standard deviations from the mean. A data point present in the Z-score is the calculation of how many standard deviations above or below the mean. A standard score is a raw score as the Z-score and is placed on a normal distribution curve. Z-scores are the scores that are capable of ranging from -3 to +3 standard deviations. The following is the graphical representation of the same,

Z Score Table

 

This can also help us determine the common difference or distance between a value and a mean value. When a variable is standardized, its means become zero whereas its standard deviation becomes one. To calculate the Z-score, the following method is followed. The basic Z-score formula for a sample is,

z = (x – ) / σ

where,

– mean value

x – test value

– standard deviation

Or another form is used, which is given below,

zi = xix S

 

where,

x = sample mean

S = sample standard deviation

 

Z-score formula - Standard error of the mean

It is when you have multiple samples and would want to define the standard deviation of those sample means, then, the following Z-score formula is used:

z = (x – ) / ( / n)


From this formula, the Z-score tells how many standard errors are there between the sample means as well as the population means.

Z-score tables – Area under a normal curve

This table is utilized to find a specific area under a normal curve. At first, the Z-score of the data value has been found followed by using a Z-score table to identify the area. This Z-score table shows the area percentage (or percentage of values) to the left of a provided Z-score on a normal distribution.

Z Score Table

The following are the two types of Z-score tables:

1. Positive Z-scores table: When the observed values are above the mean of total values, then the table is said to have a positive Z-score.
2. Negative Z-scores table: Negative Z-score values represent the observed Z-score value, which is below that of the mean of total values.

The main purpose of this table is to identify the standard normal deviation, which is considered to have a mean of 0 and a standard deviation of 1.

  • In the table’s first column, one can easily identify the number of the standard deviations which are placed either above or below the mean value to one decimal place. The row label contains both the integer part and the first decimal of the Z-score.
  • The part that is capable of denoting the Z-score which is the hundredth value that is situated across the topmost row of the table.
  • Then there lies an intersecting point for the columns and rows. This point indicates the area under the normal curve or the probability.

Z Score Table

NEET Related Links

NEET Exam 2024

NEET 2024 Exam Dates

NEET 2024 Exam pattern

NEET 2024 Syllabus

NEET 2024 Eligibility Criteria

NEET 2024 Application

NEET UG Counselling

NEET FAQ

NEET UG Result

NEET 2024 Cut Off

Neet 2023 Toppers List Names & Rank

Neet Result 2023 Toppers list rank cut off

Neet Answer key Live Download PDF

Neet 2023 State Toppers List

JEE MAIN Related Links

JEE Main 2024

JEE Main Rank Predictor 2024

JEE Main College Predictor 2024

JEE Main 2024 Exam Dates

JEE Main 2024 Exam pattern

JEE Main 2024 Application

JEE Main 2024 Eligibility Criteria

JEE Main 2024 Syllabus

JEE Main 2024 Physics Syllabus

JEE Main 2024 Maths Syllabus

JEE Main 2024 Chemistry Syllabus

JEE Main 2024 Admit Card

JEE Main 2024 Counselling

JEE Main marks vs rank vs percentile

JEE Advanced Result 2023 live topper list

JEE Exam Preparation - How to calculate your rank jee

JEE Maths Syllabus - Important topics and weightage

JEE Advanced Related Links

JEE Advanced 2024 Exam Dates

JEE Advanced 2024 Application

JEE Advanced 2024 Eligibility Criteria

JEE Advanced 2024 Syllabus

JEE Advanced 2024 Maths Syllabus

JEE Advanced 2024 Physics Syllabus

JEE Advanced 2024 Chemistry Syllabus

JEE Advanced Exam Result

JEE Advanced Exam Dates

JEE Advanced Registration Dates

CUET Related Links

CUET 2024 Eligibility Criteria

CUET 2024 Admit Card

CUET 2024 Exam Pattern

CUET 2024 FAQs

CUET 2024 Counselling

CUET 2024 Syllabus

CUET 2024 Result

CUET 2024 Answer Key

CUET 2024 Preparation

CUET CUTOFF

CUET 2024 Application Form

Talk to our expert
Resend OTP Timer =
By submitting up, I agree to receive all the Whatsapp communication on my registered number and Aakash terms and conditions and privacy policy