Answer:
48
Step-by-step explanation:
Given that:

The interval for score = 60 - 42 = 18
If we divide it by the 3 standard deviations; the interval result into
= 18/3
= 6
So, the standard deviation is 6, and the mean = 42 + 6
= 48
Answer:
5
Step-by-step explanation:
So first you need to what is over the four. 6x2=12/4. Okay so what does that equal? 12/4=3. Now we need to solve the first equation. 3+5=8. And the last part. 8-3=5
Answer: The Answer is 10
Step-by-step explanation: