Answer:
The score that cuts off the bottom 2.5% is 48.93.
Step-by-step explanation:
When the distribution is normal, we use the z-score formula.
In a set with mean
and standard deviation
, the zscore of a measure X is given by:

The Z-score measures how many standard deviations the measure is from the mean. After finding the Z-score, we look at the z-score table and find the p-value associated with this z-score. This p-value is the probability that the value of the measure is smaller than X, that is, the percentile of X. Subtracting 1 by the pvalue, we get the probability that the value of the measure is greater than X.
In this question, we have that:

What is the score that cuts off the bottom 2.5%
This is X when Z has a pvalue of 0.025, so X when Z = -1.96.




The score that cuts off the bottom 2.5% is 48.93.
What are the numbers that are supposed to be plugged in?
The answer would be B because I did this equation on a sheet of paper and I did the parentheses first which led me to my final answer B.
Answer:
y=1/2x+3
Step-by-step explanation:
-4x+8y=24
Slope-intercept form: y=mx+b
Add -4x on each side
-4x+8y=24
+4x +4x
8y=4x+24
Divide by 8 on each side
<u>8y</u>=<u>4x+24</u>
8 8
y=4/8x + 3
Simplify 4/8x
y=1/2x+3