Whats 24x23 rounded to the nearest tenth

Fredrick designed an experiment in which he spun a spinner 20 times and recorded the results of each spin

Given: △acm, m∠c=90°, cp ⊥ am , ac: cm=3: 4, mp-ap=1. find am.

Determine the required value of the missing probability to make the distribution a discrete probability distribution. x p(x) 3 0.23 4 ? 5 0.51 6 0.08 p(4) = nothing  (type an integer or a decimal.)