Read the calculator output

Exercise and reference answers

Questions

1. Hint

   take the square root

   Answer

   58.787

   Question

   Variance is 3455.960. Standard deviation to 3 d.p.?

2. Hint

   take the square root

   Answer

   6.153

   Question

   T squared is 37.86083836. T to 3 d.p.?

3. Hint

   N divided by 4

   Answer

   45

   Question

   N = 180. Position of the lower quartile?

Instructions

Work each one out and key in the answer.