Answer:
Exact Form:
3√10
Decimal Form:
9.48683298
Step-by-step explanation:
Hi!
Lets walk through this together.
Lets start with the top.
4-8 is -4.
what that line is- its pretty much telling you to divide.
-4 divided by 3 is -1.3~ (infinant 3's)
-1.3~ Is your answer. Hope this helps!
Hello!
The mean is 86 and the standard deviation is 3
You see how many deviations are between 86 and 89
86 + 3 = 89
From the median to the first deviation is where 34.1% of the results fall
Convert the percent to a decimal
34.1% = 0.341
Multiply this by the amount of test taken
200*0.341 = 68.2
The answer is B)68
Hope this helps!