Answer:
maybe it is 47 boys
Step-by-step explanation:
The question mark is 100. It is a variable if you don't know
Answer:
The lowest score you can earn and still be eligible for employment is 85.6925
Step-by-step explanation:
Problems of normally distributed samples can be 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 question, we have that:

Top 5%.
At least the 100-5 = 95th percentile.
The 95th percentile is X when Z has a pvalue of 0.95. So X when Z = 1.645.




The lowest score you can earn and still be eligible for employment is 85.6925
Answer:
Part A: Add
Part B: 8
Step-by-step explanation:
Each time it goes up by 8.
You can figure it out by: 9-1=8, 17-9=8.....
Answer:
64
Step-by-step explanation:
x + 5(x + 2)
Distribute
x + 5x+10
Combine like terms
6x+10
Let x = 9
6(9) +10
54+10
64