The scores of a psychology exam were normally distributed with a mean of 70 and a standard deviation of 5 a failing grade on the
exam was anything two or more standard deviations below the mean what was the cutoff for a failing score
2 answers:
Answer:
The Answer is likely 60.
Step-by-step explanation:
Two standard deviations from 70 is 60, because the actual deviation is 5, so 2 of those equals 10. 10 - 70 = 60.
Answer:
60
Step-by-step explanation:
Two standard deviations below the mean is:
70 - 2(5) = 60
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-9 to the second power will most likely be 81. A negative x a negative equals a positive. Hope this helped.
If you're asking the height of the triangle, it is 2x-1.
I got the 2x from "twice the length of the base"
and (-1) from "1 cm less"
50% is 1/2, 1/2 of 80 is 40
Answer:
-19
Step-by-step explanation:
-7x + (-12)
= 7x - 12 [ Note: +(-12) = - 12] .
= -19.
Answer:
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Step-by-step explanation:
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