Answer:
a) continuous random variable; b) discrete random variable; c) continuous random variable; d) continuous random variable
Step-by-step explanation:
In the case of a), b), and d), the variables are continuous random variables, because all of them are measured in a continuous scale. It means that between any two values of the scale, you can find infinite values. Height of something, time, length, are all continuous variables. For example, the outside diameters of a machined shaft could be 30 mm or 31mm, but also it could be 30.1, 30.2, 30.3 and so on. You could measure any value in the scale. The volume of gasoline also can take any value in a continuous scale. The time until a projectile returns to Earth probably needs to be measured very accurately, so again you can expect any value in the scale. When you’ re studying continuous variables the tool that you’ re using to measure it would be your limit to define how many values you can find between other two values.
The number of times a transistor in a computer memory changes state in one operation is a discrete random variable. It can only take finite values (0, 1, 2 and so on), so you can’ t find infinite values between two values. Discrete values always represent exact quantities that can be counted.
9514 1404 393
Answer:
C. 8%
Step-by-step explanation:
The tax rate is the ratio of tax to the before-tax sale amount:
tax rate = $14.39/$179.92 ≈ 0.07998 ≈ 8.00% . . . matches C
Answer:
hello
4.678 = 4 678 / 1000
Step-by-step explanation:
We'd need to figure out the side of the bigger pentagon, which is going to be messy, but we can do it!
The area of a pentagon equation is messy, and we need to solve for the side given the area, which would be sqrt((4*area)/((5(5+2sqrt(5)))^(1/2)) or sqrt((4*8)/((5(5+2sqrt(5)))^(1/2)) . We get this from the pentagon equation, multiplying both sides by 4 dividing (5(5+2sqrt(5)))^(1/2)) from both sides, then square rooting that to get the side length
Plugging it in, we get 2 and some more, and we multiply that by 2 to get the bigger side length. Plugging that into the area equation, we get a=32 and 32-8=24
Answer: 89 or 90 degrees.
Step-by-step explanation: