Answer:
D
Step-by-step explanation:
you need to ask as many people as possible you cant just choose one grade. you need to sample multiple grades
Answer:
. ...................... ........
Area of circle B = 16pi
16*36/360 = 1.6 pi ~ 5.024 units^2
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.
Answer:
1234?:177997 +1mde explicaciones pero te digo algo es 1 explicasion
