Answer:
A person must get an IQ score of at least 138.885 to qualify.
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:

(a). [7pts] What IQ score must a person get to qualify
Top 8%, so at least the 100-8 = 92th percentile.
Scores of X and higher, in which X is found when Z has a pvalue of 0.92. So X when Z = 1.405.




A person must get an IQ score of at least 138.885 to qualify.
6 + 2 = 8.
If you have 6 apples and add 2 more, you have 8 apples.
Answer:
B
Step-by-step explanation:
the exterior angle of a triangle is equal to the sum of the 2 opposite interior angles.
∠ FES is an exterior angle of the triangle , then
57° + ∠ F = 142° ( subtract 57° from both sides )
∠ F = 85°
Answer:
4
Step-by-step explanation:
- To be perpendicular, the product of the slope is -1.
- (x,y) Substituting the coordinates.
- y= 1/3(x+3) + 1
- y= 1/3x +2
Proportional thinking analyzes proportions to address questions. We can utilize relative thinking to tackle a few inquiries straightforwardly, for example, which size of clothing cleanser is the least expensive per load, for sure the components of the model vehicle ought to be.