Question

8

Answer 1

Answer:  C) 4.20

Explanation:

Multiply each value with its corresponding frequency:

• 1*450 = 450
• 10*35 = 350
• 50*10 = 500
• 100*4 = 400
• 400*1 = 400

Add up the products

450+350+500+400+400 = 2100

Then divide this over the total frequency (450+35+10+4+1 = 500)

So we get 2100/500 = 4.20 as the expected value.