Answer:
The minimum height in the top 15% of heights is 76.2 inches.
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:
Find the minimum height in the top 15% of heights.
This is the value of X when Z has a pvalue of 0.85. So it is X when Z = 1.04.
The minimum height in the top 15% of heights is 76.2 inches.
Answer:
It is the last one.
Step-by-step explanation:
With a problem like this you must rank highest to lowest and add anything that has the same look. Take 2squared and 5 squared for example, They both are squared so you can add them. Hope this Helped.
Answer:
22 weeks
Step-by-step explanation:
it is 22 weeks because if you divide 39 by 2 then it is 19.5 and if you divide 429 by 19.5 you will get 22 hope this helps.
Answer:
D. 38.8 feet.
Step-by-step explanation:
Let the height of the apple be x + 5.5 feet.
Then tan 48 = x / 30
x = 30 tan 48
x = 33.3 feet.
So the height of the apple = 33.3 + 5.5
= 38.8 feet.