Solve This Statistics Interview Question If You Can

Our Popular courses:-
Fullstack data science job guaranteed program:-
bit.ly/3JronjT
Tech Neuron OTT platform for Education:-
bit.ly/3KsS3ye
Affiliate Portal (Refer & Earn):-
affiliate.ineu...
Internship Portal:-
internship.ine...
Website:- www.ineuron.ai
iNeuron KZbin Channel:-
/ @ineuronintelligence
Telegram link: t.me/joinchat/...
Please do subscribe my other channel too
/ @krishnaikhindi
Connect with me here:
Twitter: / krishnaik06
Facebook: / krishnaik06
instagram: / krishnaik06

[@vishal3187]

after calculating the z=-1.66 then calculate the area at -1.66 using negative z-score table and 0.04846 so then answer will be 4.846%

[@aakashyadav4062]

exactly

[@cmarquay]

Z-score is (75-100)/15 = -1.6666666... Looking for -1.67 in Z-table, I obtain 0.0475. The percentage of people with an IQ less than 75 should be 4.75% (4.85% if I look for -1.66 in Z-table).

[@kadourkadouri3505]

X -> 150 (IQ at 75% as IQ per se is not a percentage but a scale) therefore (150-100)/15= 3.333 Left Z-score meaning -3.333

[@ucanalsoc]

For 75% that is 0.75. The value of x is 112.5. That is the area left of IQ score of 112.5.approximately 83.3%. If the problem has mentioned IQ score of 75, then z score is -1.67, percentage is 4.7%

[@PareshChaudhariD]

Z-score is -1.66 & area under curve using z-score left table is 48.46%

[@ayushtripathi5444]

With due respect, if distribution is not mentioned then how can we solve these problems(problem 1 as well as problem 2). For solving this problem we have to assume that given data set follows normal distribution then we can proceed in similar manner. Good explanation 👍 thank you.

[@nishantmhatre9885]

yeh, I have same doubt.

[@vishalakshiarumugam7434]

Answer to the second question is 4.75%,z score = -1.67 , from negative z score z table , the probability of IQ falling below is 0.0475 .

[@harshavardhansvlkkb2290]

0.04846 where z score is -1.6667 taken as -1.66 if -1.67 then it is 0.4746

[@remrem6681]

Bcs of krish naik i changed my domain to data science after 10 yeras.working in mnc with good package

[@pavankumarmantha]

What is n here ? Hypothesis test depend on n if n is small then it may lead us to compute t test instead of z test

[@amitranjan5520]

after calculating the z=-1.66 then calculate the area between 0 to -1.66 using z-table and subtract from 0.5 then you will get 0.5-0.45154=0.04846 so then answer will be 4.846%

[@saranyaasokan2226]

While using negative z score table answer is 4.85% for z score-1.667

[@akshaysawant7278]

Z score = -25/15 = -1.67 Approx 4.75% from table

[@AB-we9dh]

Answer to the 2nd question : 4.779% Solved this by standardizing the difference between estimate and mean and then obtained p value for it

[@PareshChaudhariD]

Simple and well explained

[@DataNarrator]

I am thankful to Khan academy.they have solved plenty of such questions.

[@bharatfordata]

Z score is -1.66 and the Z Table Value for that is .04846(4.84%). So total 4.84% of population would be having an IQ lower than 75%.

[@Emotekofficial]

So this can be solved Faster since Std Dev is 1 all I did is : round(((7-4.25)/7)*100,2) but my answer is 39.29% which is not that far! Of course, if Std Dev is not one I would have gone for Z Stat.

[@abhishekrao1097]

40.13%. Use z table and z score formula to solve it

[@mansigupta3126]

sir i need your help. how to apply GASearchCV on ANN . i have prediction data. Or any other method to use Genetic Algo Optimization on ANN. waiting for ur reply.

[@rvupadhyay3199]

Ans is 48.46 % Z score will be -1.66.. Sir do solve a question What's the probability of finding the Z between -1.43 to 0.72 P(-1.43

[@ayushgupta9588]

z score is -1.66 whose value is 0.1446 . So answer would be 14.46 %. Right or wrong ?

[@mtherfrker]

zscore is - 1.66% and z is 4.846 %assume as 4.85%

[@kadourkadouri3505]

Most answers here are turning around 4.5% which is totally unrealistic as the majority of the population falls in the segment of IQ < IQ@75%, more precisely IQ

[@karthikbhandary879]

I got 45.15%. Used the z-score and the z-table

[@shrikrishnapadalkar4182]

We can do it using the 66-95-99.7 % rule of Standard Normal Distribution. Your thoughts on this. I got an answer of 41.5%

[@KabirSingh-nk6fs]

Without any shadow of doubt, the answer shall be 4.77%. The z value is -1.667, you just have to find the area to the left of that.

[@msuryapavan9517]

Answer for the last question is 4.846%.

[@adithyaboyapati]

Answer = 4.846% people have IQ less than 75

[@dominicgamboa2554]

7:16 Assuming that IQ is normally distributed, the expected percentage is 4.85%

[@rajagarwal6810]

4.75% as 0.0475*100 = 4.75

[@Anupkumar-cd6gv]

Z score = -1.667 And IQ lower than 75% = 4.74%

[@SnehaKumari-mb4px]

my answer is 45.154 % sir. please tell us the answer. How people are getting 4%

[@pratikrathod267]

Q2 ans : 4.85% Please let me know ,am I right or wrong

[@varush6313]

For Q2, the ans is 4.85%

[@sharinair1480]

My answer is 45.15 %.

[@mayurtaware5717]

The answer is 49.15%

[@pramcharannaidu2509]

Answer to the second question is The z score is (75-100)/15 = -1.67 and the negetive z table value is 0.04746 (1−(0.5+0.4746)) = 0.4525 That will be 45.25%

[@vibhagupta1365]

Very well explained as always 🙂, thank-you !!

[@thalibarrifqi]

z score = -1.667 using negative z table Q2 = 45.25% I'm not sure, is it correct?

[@RahulSharma-bs6if]

Hi sir, I am planning to take the course of full stack data science boot camp job guarantee program and I read the job guarantee page and in point no 10 it’s written that The candidate should not have a gap of more than 2 years. Sir I am a graduate of 2014 and since then I am doing my business and now I want to learn data science. So will that affect my job placement in any way?? Could you please clarify this to me.

[@makranddilipbhandari]

Z - score = (75-100) /15 = -1. 667 Using negative z score table, Percent of population having IQ lower than 75 = 0.04746 = 4.75%

[@mohdnazuanwagimin6026]

My Answer = 4.75%. Good Video Bro...

[@gokulchinnasamy1488]

Ans to the 2nd qus is 45.15%

[@vikram.nayyar]

33%, as per gaussian distribution

[@susmithareddy6363]

z-score = (75-100)/15 = -1.66 As the auc lies in the _ve standard deviation considering Z-Table Negative p-value = 0.5 + 0.04846 = 0.45154 =45.15% considering Z-Table Positive p-value = 1-(0.5 + 0.95154) = 0.45154 =45.15%

[@jojushaji3010]

Answer is 4.779%

[@tavishgandhi363]

Answer = 4.85%

[@priyamtrivedi6345]

45.75% data is above 4.25

[@saikumarreddy5994]

Krish when will ineuron app release

[@sandhyar490]

Z- score = (75-100)/15 = -1.666 -ve Z table for -1.666 is 0.5480 0.5-0.5480 = -0.048 0.048*100 = 4.8% Please verify this, if its wrong, please suggest me where I did wrong.

[@aakashyadav4062]

4.846% students have lower that 75 IQ

[@souvikchatterjee6188]

The answer is 4.85 % I think

[@divyanshuagarwal429]

41.76 % are below 75%

[@prabhukesavan2403]

4.75 % of people will have IQ < 75 %.

[@ritikgupta6825]

how can we do this all calculation during the interview, did they give this much time

[@priyamghosh508]

My result is 44.63%

[@arshad1781]

Thanks

[@jatinnandwani6678]

Thanks so much

[@user-yn8bh]

Answer == 4.846 % of population has lower IQ then 75 . ( for Question 2 )

[@mayurmahto8198]

.0485 ans

[@prathmeshjagtap2898]

My Result is 45.15%

[@aaric1242]

Not sure, but I got 45.15%

[@LaxmanSingh-yk6go]

48.5%

[@satyakimanna6436]

4.85

[@ranajaydas8906]

4.85%

[@adhyayannegi5227]

I got 45.15%

[@pratik5692]

fsds batch already solved this question yesterday

[@krishnaik06]

:)

[@zodiac356]

close to 4o

[@jojushaji3010]

4.779035% of people will have iq

[@Rahul_Singh_Rajput_04]

❤❤❤❤

[@h.m.mahbubrabbani679]

45.25%

[@AshishGoyal1018]

4.85%

[@saikiran-mi3jc]

I got 45.15%

[@krishnabhutada3983]

45.154%

[@alokmishra5367]

48.5 percent

[@yasiruvinodpathirana7232]

4.77%

[@mayashankarsingh1325]

4.846%

[@ashabhumza3394]

4.74%