In questions let A be the set of all strings of decimal digits of length ﬁve. For example 00312 and 19483
are strings in
-How many strings in A have exactly three $$5 \mathrm {~s} ?$$

Question

Quizplus · Accepted Answer

The Answer of In questions let A be the set of all strings of decimal digits of length ﬁve. For example 00312 and 19483
are strings in
-How many strings in A have exactly three $$5 \mathrm {~s} ?$$

In Questions Let a Be the Set of All Strings 5 s?5 \mathrm {~s} ?5 s?

In Questions Let a Be the Set of All Strings $5 \mathrm {~s} ?$