Using the normal distribution, it is found that the cut-off time which 75.8% of the college students exceed when trying to find a parking spot in the library parking lot is of 3.7 minutes.
<h3>Normal Probability Distribution</h3>
The z-score of a measure X of a normally distributed variable with mean 
and standard deviation 
is given by:
- The z-score measures how many standard deviations the measure is above or below the mean.
- Looking at the z-score table, the p-value associated with this z-score is found, which is the percentile of X.
The mean and the standard deviation are given as follows:
The cut-off time is the 100 - 75.8 = 24.2th percentile, which is <u>X when Z = -0.7</u>, hence:
X - 4.5 = -0.7
X = 3.7.
More can be learned about the normal distribution at brainly.com/question/4079902
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Answer: y = 9x/4
Step-by-step explanation:
We can use slope formula to find the slope of a line that passes through two points (x₁ , y₁) and (x₂ , y₂)
<h3>m = ∆y/∆x = (y₂-y₁)/(x₂-x₁) </h3>
Given points are:
P(x₁ , y₁) = (0, 0) origin
Q(x₂ , y₂) = (-4, -9)
Substituting these two known points in the slope formula, we have:
m = (-9-0)/(-4-0) = -9/-4 = 9/4
Now we can use the point-slope formula to write the equation of a line given a point on the line and the slope of the line:
m = 9/4 , given point P(x₁ , y₁) = (0, 0)
Formula :
(y-y₁) = m(x-x₁)
(y-0) = 9/4(x-0)
<h3>y = 9x/4 </h3>
Answer: y = 9x/4
<h2><em>Spymore</em></h2>
3^3 • 3^3 = 3^9
Hope this helps!
Answer:
m22 answer will be in your book only
Answer:
ok
Step-by-step explanation:
thanks for the points
