What is the probability of one of the coins landing on tails and two of them landing on heads

Explanation:

Look at the "outcomes" column. We're looking for either THH, HTH, or HHT. This represents getting two heads and a tail. The order doesn't matter. Count out the number of THH, HTH or HHT and you should count out 3 total. The other combos have either all heads or more tails than heads.

We have 3 ways to get what we want (THH, HTH or HHT) out of 8 outcomes overall. So 3/8 = 0.375 = 37.5% is the probability we want.

Side info: Notice how each coin has 2 outcomes (H or T) and having 3 coins has 2^3 = 8 outcomes.

10.416 m/s

step-by-step explantion:

distance=100m

time= 9.6s

average speed=100/9.6

=10.416 m/s

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°