Step 1 count to find the number of red counters (5). step 2 count go find the total number of counters (7). step 3 write the ratio ( ? )

Asimple random sample of size nequals14 is drawn from a population that is normally distributed. the sample mean is found to be x overbar equals 70 and the sample standard deviation is found to be sequals13. construct a 90% confidence interval about the population mean

The sum of two numbers is 86, and their difference is 20. find the two numbers

The parabola y = x² - 4 opens: a.) up b.) down c.) right d.) left