Each time you flip a quarter, there’s a 1 out of 2 chance (eg: 50% probability) it will come up heads. But what’s the probability of the coin coming up heads 3 times in a row?
In general, compound probability = the product of each individual probability that the desired outcome is based on
3 consecutive coin tosses of heads = 50% x 50% x 50% = 12.5% (or 1 out of 8)
An assortment of some of the trickier kinds of problems that students might see on the SHSAT. Things like… modulo division, mean & median, fractionally-filled jars, number theory, probabilities, and unit conversion – followed by a deeper exploration of word problems involving averages (aka: mean).
In general, people tend to think of percent increases and decreases as absolute measurements. They should be thought of as relative measurements. This post includes sample problems that cover global warming, subway fare hikes, the stock market, and the unreasonably high cost of coffee. New challenges will be sent out on a weekly basis.
On Thursday April 29, DOE began sending out an email blast to the parents of the 30,000 or so students who sat for the SHSAT in January. It did not go well.
Below is the actual tweet if you’d like to follow the thread.
https://twitter.com/NYCSchools/status/1387856826935517191
IMPORTANT: Due to a Microsoft-related issue, some families were not able to open the email with their child’s SHSAT results.
— NYC Public Schools (@NYCSchools) April 29, 2021
🔹We will send you a new email by tomorrow, 4/30
🔹If you didn't yet receive an email with your child’s results, your email will arrive by tomorrow, 4/30
On Wednesday 1/27/2021, my daughter sat for the SHSAT. This is a 114-question math and english test, used by 7 of the 8 specialized New York City high schools as the sole determinant of admittance. She received her official offer letter 4/30/2021. This blog post recaps how we prepared, and tries to answer a few common questions parents and kids might have.