Question 3.[3 marks]Consider the following SPSS stem-and-leaf plot for a variable SVAR.

SVAR Stem-and-Leaf Plot

Frequency Stem & Leaf

1.00 7 . 1

.00 7 .

2.00 8 . 12

5.00 8 . 57789

12.00 9 . 001223334444

13.00 9 . 6666677888999

10.00 10 . 0111122333

11.00 10 . 55567788999

11.00 11 . 00001111233

21.00 11 . 555566667777788888999

23.00 12 .00000011111222223333344

8.00 12 . 56778899

9.00 13 . 011233344

7.00 13 . 5666899

10.00 14 . 0000001224

3.00 14 . 578

4.00 15 . 0011

1.00 15 . 6

1.00 16 . 2

Stem width: 1.00

Each leaf: 1 case(s)

1. [2 marks] What is the inter-quartile range of SVAR for this sample of adults? Show working/reasoning.
2. [1 mark] What percentage of adults have SVAR greater than 13?