Determine whether the following value is a continuous random variable, discrete random variable, or not a random variable.
a. the square footage of a pool
b. the last book a person in city upper a read
c. the time it takes to drive from city upper a to city upper b
d. the time it takes for a light bulb to burn out
e. the amount of rain in city upper a during july
f. the time required to upload a file to the internet

Answer with Step-by-step explanation:

Since we have given the conditions.

As we know that

Discrete random variables are those variables that can be measured in number.

Continuous random variables are those variables that can be measured in range.

a. The square footage of a pool  - it will be a continuous random variables as square footage can take any value within an interval.

b. The last book a person in City Upper A read  - It is not a random variable.

c. The time it takes to drive from City Upper A to City Upper B  - it will be a continuous random variables as it take any value within an interval.

d. The time it takes for a light bulb to burn out - it will be a continuous random variables as it take any value within an interval.

e. The amount of rain in City Upper A during July  - it will be a continuous random as it can take any value within a range.

f. The time required to upload a file to the Internet - it will be a continuous random variable as it can take any value within any range.

d) by the cross product property, ab^2 = bc multiplied by ad

step-by-step explanation:

we are given

in the given triangle abc

angle a is 90° and segment ad is perpendicular to segment bc

we can see that

triangle(abc) and triangle(abd) are similar because they have common side and same angle (90 degree)

so, triangles(abc) and abd are similar

since, they are similar

so, the ratio of their sides must be equal

we get

now, we can cross multiply

and we get

so, this could be step to prove it