2017 - Texts I can use to brush-up/build skills in Maths/Stats?

[TaoTeChing]

I'd really appreciate some advice on this.

I know stats and highschool level mathematics do tend to show up in Indian entrances for econ.

Most places recommend any highschool level textbook but my highschool mathematics courses (although not bad per say) didn't put as much a focus on calculus to the extent that is required for these entrances, even questions on what I can only assume are "functions" tend to trip me up in some DSE papers.

Is there any particular books or better yet chapters from a particular book that I can use?

Statistics I am more acquainted with but I feel I could still improve.

Any recommendations?

[jigglypuff666]

Go through Alpha C Chiang, that book is god like. It goes slow and steady, but makes you understand mathematical economics.

Try Gujarati and Woolridge for eco trix. Woolridge jumps to multiple regressions asap, and Gujarati goes slow but covers much more.

and do as much probability as you can.

[maecon]

Straight from the horses mouth ::  after some very horrible days i finally had a chance of talking to someone who does linear regression daily (in economics and data analysis ) ,   this is what he said :   forget about any gujarati or any other text in econometrics and start learning stats especially hypothesis test using Z scores and t scores .
know about sampling distributions and it mean and variance , chi-square , and all things in between and when you are done with that than only go for any econometrics text or online course .

there are few books that are famous and all listed in the DU ba. economics guide , there is one online course on coursera by some college based in Netherlands( this college is known for being the first in the world to introduce econometric ((apparently))  

bottom line

DO NOT DO ECONOMETRICS STRAIGHT FIRST FOCUS ON STATS AND PROBABILITY AND THEN ONLY GO FOR IT

i will be following the same path myself :)