Answer:
146.9
Step-by-step explanation:
I'm not sure of the answer but if I'm wrong tell me I'll continue trying it is a pleasure to help you.
Answer:
1877 computer users
Step-by-step explanation:
We have that for 95% of confident, the value of z has a value of 1.96 (attached table about it), they also mention the margin of error (E) that is 10 and finally the standard deviation (sd) that has a value of 221.
We apply the following formula:
n = [z * sd / E] ^ 2
replacing:
n = [1.96 * 221/10] ^ 2
n = 1876.27
that is, the minimum sample size is 1877
Answer: 11/18
Step-by-step explanation: I've attached the explanation
Im not 100% sure but
A: 10
B: 5
C: 15
D: 30
for:
A: 30 x 1/3
B: 15 x 1/3
C: 5/ 1/3
D: 10/ 1/3
