Assume that the readings on the thermometers are normally distributed with a mean of 0∘ and a standard deviation of 1.00∘c. a thermometer is randomly selected and tested. find the probability of each reading in degrees.

answer: the correct one is a

step-by-step explanation:

the first one, all those points on the line just make a strait line.

2.2°  

step-by-step explanation:

let θ = the angle of elevation.

tanθ =77/2020

tanθ = 0.038 12

      θ = tan⁻¹0.038 12

      θ = 2.2°

the answer is:

the correct option:

b.

to solve the problem, we need to remember how to operate to simplify exponential expressions using the logarithms.

we are given the equation:

then, using placing logarith with base 7 on both sides of the equation, we have:

so, rounding the obtained result to two decimal places (nearest hundreth), we have:

hence, we have that the correct option:

b.

have a nice day!