Test 7, Section 4, Number 38

Hi Mike, Test 7, Section 4, Number 38. Probability: I keep losing track trying to think this through. Other than the table provided, is there a chart I can draw that will help me “see” the probabilities? Or, what’s the best / quickest way to manage this one? Thanks !

Would you please show how you would solve PSAT test section 4, #16? Thank!s

Would you please show how you would solve PSAT test section 4, #16? Thank!s

If two dice are rolled, what is the probability the sum of the numbers is 4 or 5?

If two dice are rolled, what is the probability the sum of the numbers is 4 or 5?
* i actually thought the two dice are the same and there is no difference between (1,4) (4,1). Then my answer was 4/36=1/9
But the answer is 7/36, apparently it considered the (1,4) (4,1) (2,3) (3,2) etc. Why should we think of the dice as different?

The figure above represents four offices that will be assigned randomly to four employees, one employee per office…

The figure above represents four offices that will be
assigned randomly to four employees, one employee
per office. If Karen and Tina are two of the four
employees, what is the probability that each will be
assigned an office indicated with an X ?

The figure is Four boxes or (offices) and two of them are labeled X.

Check your Data Analysis, Statistics, and Probability skills

How’s everyone else doing on this quiz?

Keep probability questions as simple as you possibly can. Please.

Disclaimers: 1) Probability problems are some of the SAT’s most difficult, but they’re also some of the most rare. There’s a pretty decent chance you won’t see a very hard question like this on your test, so prioritize your prep time; don’t worry too much about this stuff until you’ve really nailed the basics. Ironically, this (more…)

Weekend Challenge – Chocolate bunny edition

Prize this week: you get to decide, once and for all, whether Marshmallow Peeps or Cadbury Creme Eggs are the better candy. No longer will disagreements be chalked up to “difference of opinion.” Once you issue your decree, it will be a matter of record. Minor dissent will be tantamount to outright prevarication. Think you (more…)