Hey guys! I am going to be posting multiple questions, but one by one... so be prepared! 14 2/3 x 2 1/2=?

Given the following sampling distribution of one mean with a sample size 49, from a normally distributed population,find the population standard deviation, o.79828588912497

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

In which quadrant does the point lie? write the coordinates of the point. a. quadrant ii; (–2, –4) b. quadrant iii; (2, 4) c. quadrant iii; (–2, –4) d. quadrant iv; (–4, –2)