Answer:
idk but i need points sorry mane
Step-by-step explanation:
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Answer:
good and you
Step-by-step explanation:
Answer: 0.4
Step-by-step explanation:
We know that the standard deviation of the sampling distribution of mean is given by:-

Given : Standard deviation : 
Sample size : n= 25
Then, the standard deviation of the sampling distribution of mean times will be :-

Hence, the standard deviation of the sampling distribution of mean times=0.4
Answer:
1. = 1 2. = 6 3. = 2.9 4. = 0.75 5. = 3.5 6. = 20.5
Step-by-step explanation:
⅘ + ⅕ = 1
3 ¾ + 2 ¼ = 6
25/10 + 4/10 = 2.9
10/8 - 4/8 = 0.75
$5 ¾ - $2 ¼ = 3.5
21.45 - 1 9/20 = 20.5
Hopes it helps plz mark me branily