What are the little lines? i can’t figure this problem out

Number Line. The small lines are still "Number Lines" cause it is part of that graph or what we call the "Number Line"

Step-by-step explanation:

the expected value of the random variable : 0, 1 and 2

step-by-step explanation:

fahrenheit

step-by-step explanation:

fahrenheit is more precise than celsius. the ambient temperature on most of the inhabited world ranges from -20 degrees fahrenheit to 110 degrees fahrenheit—a 130-degree range. on the celsius scale, that range is from -28.8 degrees to 43.3 degrees—a 72.1-degree range. this means that you can get a more exact measurement of the air temperature using fahrenheit because it uses almost twice the scale.