The probability that the reaction time for this density function is at most 2.5 seconds is equal to 0.9.
<h3>What is a density function?</h3>
A density function can be defined as a type of function which is used to represent the density of a continuous random variable that lies within a specific range.
<h3>How to calculate the probability that reaction time is at most 2.5 seconds?</h3>
P(X ≤ 2.5) = Fx(2.5)
Fx(2.5) = 3/2 - 3/2(2.5)
Fx(2.5) = 3/2 - 3/5
Fx(2.5) = 0.9.
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Complete Question:
The reaction time (in seconds) to a certain stimulus is a continuous random variable with pdf:
f(x) = 
What is the probability that reaction time is at most 2.5 seconds?
25% of 160 = 0.25 x 160
25% of 160 = 40
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Answer: 25% of 600 is 40.
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This beautiful if a question is 35
Answer: 19/17 (Decimal: 1.117647)
a) Aiden's taxable income is $50,450.
The taxable income is equal to the gross income minus the standard deduction.
= $50,450 ($63,000 - $12,550).
b) Aiden's marginal tax rate = 22% (for taxable income falling under the income bracket of $40,526 to $86,375 for the tax 2021 year. It is assumed that Aiden is single.
c) Aiden's effective tax rate = 13.72%. The effective tax rate = total taxes due divided by Aiden's taxable income.
= 13.72% ($6,922/$50,450 x 100)
Related links on taxable income at brainly.com/question/1160723
