Q. round two decimal places 4 httpsalwww.wnbassign netwebstudent/Assignment-Resp

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Q. round two decimal places 4 httpsalwww.wnbassign netwebstudent/Assignment-Responsessutmirndepe14s48232 Gonal roun be G per row rve country music bands and 2 rock bands are signed up to perform at an all-day festival. How many different orders can the bands play in If the following conditions apply? there are no restrictions on the order b) all the bands of each type must perform in a row Notes Ask Your Teache The probability of an event occurring is given. Find the odds in favor of the event ocourring My Notes o Ask Your Teach -1.66 points AuExce3 12301s submissions used A coin is tossed four times. Assuming that the coin is equally likely to land on heads or tails, compute the probablity of the event occurring (Enter the probability as a

Explanation / Answer

15.a)

You have 9 bands to play.
We assume that the bands are distinguishable (in other words, even if two bands are both country music bands, it matters what order they play in.)

9 bands (not considering any restrictions) can play in 9! ways.

9! = 9 x 8 x 7 x 6 x 5 x 4 x 3 x 2 x 1
= 362,880 ways

b)

There are two possible orders:
1) All the 5 country music bands first, then the 2 rock bands --> 5! x 2! = 120 * 2 = 240 ways
2) All the 3 rock bands first, then the 6 country music bands --> 2! x 5! = 2 * 120 = 240 ways

So the total ways would be:
480 ways

16.   

Write the decimal 0.65 as a fraction 65/100. It doesn't reduce.

probability = 0.65 = 65/100, which means 65 successes out of 100 trials,
which means 65 successes to 100-65 = 35 failures

Odds in favor means successes : failures, so that's

100 successes to 35 failures or 100:35

17. There are 4C2+ 4C3+4C4

6+4+1=11 ways to get at least 2 tails.

out of 2^4= 16 possibilities.

so the answer is 11/16.

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