Answer:
7 and 3
Step-by-step explanation:
7 is 4 more than 3 and 7 plus 3 is 10.
Answer:
3
Step-by-step explanation:
n = (30-12) ÷ 6
n = 18 ÷ 6
n = 3
Answer is 5
first you do 1 divided by 5 then you times by 25
Well -5 is the whole number, and .36 is the fractional part which is equal to 36/100 so:
-5 and 36/100 with four being the greatest common factor of the fraction....
-5 8/25
Answer:
A) the probability model for the insurance company's profit:
<u>x 100 -9,900 -2,900</u>
P(X = x) 0.9975 0.0005 0.002
There is a 0.05% chance that there will be a major injury and a 0.2% chance of a minor injury, the chance of no injury happening is 99.75%.
B) the company's expected profit = ($100 x 0.9975) + (-$9,900 x 0.0005) + (-$2,900 x 0.002) = $99.75 - $4.95 - $5.80 = $89
C) the standard deviation is the square root of the variance, and the variance =
σ² = ∑(x - μ)² P(x) = (11² x 0.9975) + (9989² x 0.0005) + (2989² x 0.002) = 121 + 49,890 + 17,868 = 67,879
standard deviation = √σ² = √67,879 = 260.54