In order to use the t distribution, we must know the population standard deviation.
true or false?

Svetlana's hair is 4 4 centimeters ( cm cm) long. her hair grows 1 . 5 cm 1.5cm per month. svetlana wants her hair to be less than 1 6 cm 16cm long. write an inequality to determine the number of months, m m, svetlana can allow her hair to grow so that it is less than 1 6 cm 16cm long.

Convert 2000 swiss francs to dutch guilders

Find the roots of the polynomial function f(x) = x^3 + 2x^2 + x