Solve This Statistics Interview Question If You Can

Our Popular courses:-
Fullstack data science job guaranteed program:-
Tech Neuron OTT platform for Education:-

Affiliate Portal (Refer & Earn):-

Internship Portal:-

iNeuron Youtube Channel:-

Please do subscribe my other channel too

Connect with me here:

[vishal]

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%

[kadourkadouri]

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

[cmarquay]

Z-score is (75-100)/15 =
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).

[ayushtripathi]

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.

[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%

[mansigupta]

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.

[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

[amitranjan]

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%

[vishalakshiarumugam]

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 .

[saranyaasokan]

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

[remrem]

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

[abhishekrao]

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

[AB-wedh]

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

[dominicgamboa]

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

[vibhagupta]

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

[shrikrishnapadalkar]

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%

[karthikbhandary]

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

[harshavardhansvlkkb]

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

[RahulSharma-bsif]

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.