According to a study, 86% of k-12 schools or districts in a country use digital content such as ebooks, audiobooks, and digital textbooks. of these 86%, 11 out of 20 use digital content as part of their curriculum. find the probability that a randomly selected school or district uses digital content and uses it as part of their curriculum. the probability that a randomly selected school or district uses digital content and uses it as part of their curriculum is nothing.

Our required probability is 47.3%.

Step-by-step explanation:

Since we have given that

Probability of schools or district in a country use digital content = 86% = 0.86

Probability of schools or district uses digital content as a part of their curriculum out of 86% =

So, Probability that a selected school or district uses digital content and uses it as a part of their curriculum is given by

Hence, our required probability is 47.3%.

step-by-step explanation:

given perimeter: 28cm

length: 9cm

atp,

2(l+w)=p of the reactangle

2(9+x)=28

18+2x=28

2x=28-18

x=10/2

x=5

therefore width is 5 cm