Question

The table below is a tabulation of opinions of employees of Axolotl Corporation, who were sampled at random from pay records and asked to complete an anonymous job satisfaction survey Degree of Satisfaction Neutral Pay Type Salaried Hourly Col Total Satisfied Row Total 60 180 240 80 120 50 60 Assuming independence, the expected frequency of satisfied hourly employees is O 60. O 90. O 80 O 75.

Answer 1

We know that expected frequency is given by:

Expected frequency = [(Row Total) x (Column Total)] / Table Total

Required expected frequency = $\frac{180\times 120}{240}=90$

Hence 2nd option is the correct option.