In a bivariate data, the sum of square of difference between the ranks of observation
value of two variables s 30 and the rank
correlation coefficient is 9/11. Find the
number of pairs
=10

Acircle has the equation (x-2)^2 +y^2 =5. what are the coordinates of the circle's center?

You and a friend went to the movies. you spent half your money on tickets. then you spent 1/4 of the money on popcorn, $2 on candy, and $3 on a soda. if you have $1 left, hiw much money did u take to the movies?

How many ordered pairs of positive integers satisfy xy=32?