According to a study, 80% of k-12 schools or districts in a country use digital content such as ebooks, audio books, and digital textbooks. of these 80%, 5 out of 10 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.

There is a probability of 40% of getting a school or district uses digital content and uses it as part of their curriculum.

Step-by-step explanation:

Since we have given that

Probability that schools or districts in a country use digital content = 80%

Probability that schools uses digital content as a part of their curriculum out of 80% =

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

Hence, there is a probability of 40% of getting a school or district uses digital content and uses it as part of their curriculum.

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step-by-step explanation:

b. 6

step-by-step explanation:

we are given the table representing an exponential function.

we can see from the table that, as x is increasing, the value of y is increasing in the power of 6.

i.e. the following relation is obtained,

x = 1, y = 6

x = 2, y = 36 =

x = 3, y = 216 =

x = 4, y = 1296 =

x = 5, y = 7776 =

so, the geometric series obtained is .

thus, the common ratio is given by = = 6.

hence, the common ratio is 6.