Answer:
What’s the sign between : 20 and 7x ? .
That’s an important point that may change the answer :).
Answer:
8
Step-by-step explanation:
Given that in a sample of n = 6 scores, the smallest score is X = 3, the largest score is X = 10
Mean = 6
Since mean = 6 we get sum of all the 6 scores = 
Now II part says 10 is changed to 20
i.e. original sum = 36
Changed value = 10
Adjusted value =26
Add: new value =22
New sum =48
So we have sum = 48
New mean= 
(This can also be done using the formula
old mean + positive change in one score/6)
Answer:
B. 60L
Step-by-step explanation:
30L = 1hr
2hrs= 30×2= 60L
Answer:
No
Step-by-step explanation:
No, it's not equivalent because:
16 × 4 = 64
14 × 4 = 56
Therefore this gives 64:56 and not 64:50
The multiple which is 4 cannot be used; its not equivalent