Answer: what is the problem
Step-by-step explanation:
Answer:
The passing score is 645.2
Step-by-step explanation:
Problems of normally distributed samples are solved using 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 problem, we have that:

If the board wants to set the passing score so that only the best 10% of all applicants pass, what is the passing score?
This is the value of X when Z has a pvalue of 1-0.1 = 0.9. So it is X when Z = 1.28.




The passing score is 645.2
Answer: x = 120
Step-by-step explanation:
The answer is 24.2 hope this helped
Answer:
1.2
Step-by-step explanation:
it's 1.2 because
the marked parts on the number line represent a fraction of the whole
so in writing this
it will be decimals
and wen the marked lines between 0 and 1 are counted it is 4
so starting each marked line represent 2
so
0.2,0.4,0.6,0.8,1,1.2,1.4,......
so from 1 the next marked part is 1.2
so the answer is <u>1.2</u>