Use the addition rule to solve the problem.
What is the probability that the arrow will land on 4 or 2?
A. 4
B. 
C. 
D. 
Answer: D
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Given the set sketched on the number line, identify the type of interval (open, closed, half-open, open infinite, closed infinite), write the set using set-builder notation, and write the set using interval notation.
A. closed interval; {x|-3 ? x ? 2}; [-3, 2] B. half-open interval; {x|-3 ? x < 2}; [-3, 2) C. open interval; {x| -3 < x < 2}; (-3, 2) D. half-open interval; {x|-3 < x ? 2}; (-3, 2]
Solve the problem.Enrique borrowed $2500 to put a down payment on a motorcycle. The loan had a simple interest rate of 8% for 2 years. Use the formula I = prt to find the amount of interest he will pay on the loan. I = interest; 
r = rate (expressed as a decimal 0.08); t = time in years.
A. $2900 B. $200 C. $400 D. $2000
Suppose X is a normal random variable with 
and 
. Round your answers to four decimal places, if necessary.
?
Find 
.
?
__________
?
Find 
.
?
__________
?
Find 
.
?
__________
What will be an ideal response?
Evaluate the expression without using a calculator.1441/2
A. 12 B. 6 C. 48 D. 24