People please help me in this math homework

Mathematics

2 answers:

viktelen [127]3 years ago

8 0

For the last 2 questions,

1. 9/10
2. 7/12

natita [175]3 years ago

4 0

At the top 3/6 and 1/2 are equal to 0.5
exercise 1 is 9/12
exercise 2 is 2/5
and at the bottom it is 9/10 for the first one and for the second on it is 7/12

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you have two nickels three dimes and a quarter using at least one of each coin, how many different amounts of money can you make

alexgriva [62]

5 different amount
3d 2n 1q=65cents
1d 1n 1q=40cents
2d 2n 1q=55cents
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3 years ago

Two athletic teams play a series of games; the first team to win 4 games is declared the overall winner. Suppose that one of the

kodGreya [7K]

Answer:

p=0.7103 (4-game series)
p=0.6480 (2-game series)

Step-by-step explanation:

Let X be the random variable equal the the first 4 straight wins. An overall win for the stronger team implies a negative binomial function with the parameters n=4, p=0.6:

$P(X=4)={{i-1}\choose {4-1}}0.6^40.4^{i-4},\ i=4,5,6,7$

#We find probabilities for the different values of i:

$P(X=4)={3\choose 3}0.6^4=0.1296\\\\P(X=5)={4\choose 3}0.6^40.4^1=0.2074\\\\P(X=6)={5\choose 3}0.6^40.4^2=0.2074\\\\P(X=4)={6\choose 3}0.6^40.4^3=0.1659$