12 (don't take my answer because it's been awhile since I've fine a question like that but I'm pretty sure it's 12)
Answer:
5
Step-by-step explanation:
The formula for Standard Error =
Standard deviation /√n
Where
n = Random number of samples
From the above question,
Standard deviation = 10
n = 4
Hence, Standard Error is calculated as:
= 10/√4
= 10/2
= 5
Therefore, the Standard error = 5
