The expected value be 2.37 for the given data.
<h3>What is expected value?</h3>
The expected value is calculated by multiplying each of the possible outcomes by the likelihood each outcome will occur and then summing all of those values.
E ( X ) = μ = ∑ x P ( x )
= 1(0.21)+2(0.38)+3(0.27)+4(0.11)+5(0.03)
= 2.37
Hence the expected value be 2.37 for the given data.
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Answer:
$324
Step-by-step explanation:
Two ways to look at it:
Change 25 % to a decimal
$400 x .25= $100 is the discount
$400- $100= $300
Sales Tax: change 8% to a decimal
300 x .08= $24
Total cost is $324
or you can say you are paying 75% for the camera since it is discounted 25%
So change 75% to .75
$400 x .75=$300
Sales Tax: change 8% to a decimal
300 x .08= $24
Total cost is $324
Answer:
C
Step-by-step explanation:
They values have a proportional relationship, as x increases by 4, y increases by five, giving a slope of 5/4. You can use the slope and a point given (I'll use (1,5)) in the equation y=mx+b to find the y-intercept, so solving for 5=5/4(1)+b you get 4.75 as your y-intercept. Simplified to slope intercept form y-5=5/4(x-1) is equal to our equation, so the answer is C.
