2.8 is the correct answer :)
Answer:
0.0668 = 6.68% probability that an individual man’s step length is less than 1.9 feet.
Step-by-step explanation:
Normal Probability Distribution:
Problems of normal distributions can be solved using the z-score formula.
In a set with mean
and standard deviation
, the z-score 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 p-value, we get the probability that the value of the measure is greater than X.
Normally distributed with a mean of 2.5 feet and a standard deviation of 0.4 feet.
This means that 
Find the probability that an individual man’s step length is less than 1.9 feet.
This is the p-value of Z when X = 1.9. So



has a p-value of 0.0668
0.0668 = 6.68% probability that an individual man’s step length is less than 1.9 feet.
Y=x/5
divide 5 on both sides, this is as far as you can simplify the equation with the information given
Answer:
<h2>16 = (x-2)² + (y-7)²</h2>
Step-by-step explanation:
see image
It's a Fibonacci sequence sum of two prior (Xn=Xn-1+Xn-2). X6=X6-1+X6-2
X6=X5+ X4
So the answer is 59.
3, 10, 13, 23, 36, 59…