Mathematics: Dewayne missed four of the 30 problems on the problem set. What percent of the problems did Dewayne answer correctly? (answer with a fraction for the remainder)

Dewayne missed four of the 30 problems on the problem

ggujjnh

21.01.2022

The percent of the problems did Dewayne answer correctly = 86.6%

Step-by-step explanation:

Given DeWayne missed four of the 30 problems on the problem set

let "E" be the event of missing problem set P(E) = $\frac{4}{30}$

Let $E^{-}$ be the event of DeWayne answer correctly

P( $E^{-}$ ) = 1 - p(E)

= $1- \frac{4}{30}$

= $\frac{30-4}{30}$

= $\frac{26}{30}$ = 0.866

The percent of the problems did Dewayne answer correctly = 86.6%

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