1. In the sample data given below, find the mean, median, mode, and standard deviation.

22, 30, 26, 39, 40, 35

2. Thesample data below shows the rental costs of one bedroom apartment in a town.

rental cost frequency

$1000 - 1200 5

1200 - 1400 8

1400 - 1600 10

1600 - 1800 7

Fine the mean and standard deviation.

3. In a local college, the survey data of smoking students is given below:

Smoking No smoking

Male 23 67

Female 35 65

Find the probability:

a) P (smoking given female) b) P (male and smoking) c)P (female or smoking).