If 90% of all people between the ages of 30 and 50 drive a car, find these probabilities for a sample of 20 people.
a. exactly 20 people drive a car.
b. at least 16 people drive a car.
c. at most 5 people drive a car.

explanation:

infrared radiation has wavelength in the range between 700 nm and 1 mm. lets' convert these values into scientific notation, keeping in mind that:

let's start from the lower value, we have:

(we moved the dot two places to the left, so we increased the exponent by 2 units, from -9 to -7)

the higher value is:

so, the range of wavelength of infrared radiation is:

i dont know what you want me to answer for this but im guessing 2: 11?

well

44-3-3-3=35

35+4+4+4+4=51

so the ansewr would be 51 degreesat 7: 00