Dear Mike,

Can you do Khan Academy Test #4 Section 4 #23? I was wondering, how do you find Standard Deviation on your calculator (I have the normal TI-84 Plus)?

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Tag: statistics

# Test #4 Section 4 #23?

# Prepping for the new SAT? Try this.

# New sample questions: Math part 4

# New sample questions: Math part 3

College Board released a bunch of sample questions this week for the new PSAT and SAT, which will make their debuts in October 2015 and March 2016, respectively. Over the next few days, I’ll be making posts working through each question, a few at a time, and commenting on them when I feel like I have (more…)

# New sample questions: Math part 1

College Board released a bunch of sample questions this week for the new PSAT and SAT, which will make their debuts in October 2015 and March 2016, respectively. Over the next few days, I’ll be making posts working through each question, a few at a time, and commenting on them when I feel like I have (more…)

Dear Mike,

Can you do Khan Academy Test #4 Section 4 #23? I was wondering, how do you find Standard Deviation on your calculator (I have the normal TI-84 Plus)?

I’m in full-on writing mode for the next edition of the Math Guide, which will of course be aimed at the new SAT that debuts March 2016 (and the new PSAT, which debuts in October of this year). The new test is pretty different, so it’ll be a major overhaul—some chapters in the current guide (more…)

College Board released a bunch of sample questions this week for the new PSAT and SAT, which will make their debuts in October 2015 and March 2016, respectively. Over the next few days, I’ll be making posts working through each question, a few at a time, and commenting on them when I feel like I have (more…)