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joja [24]
3 years ago
8

A randomly generated list of numbers from 0 to 4 is being used to simulate an event, with the number 4 representing a success. W

hat is the estimated probability of a success?
Mathematics
2 answers:
Sliva [168]3 years ago
7 0

Answer: 20%

Step-by-step explanation:

The given random list of numbers from 0 to 4 = 0,1,2,3,4

Therefore, the numbers in the list =5

Also, the number 4 representing a success.

Therefore the number of digits representing success = 1

Now, the probability of a success is given by :-

\text{P(success)}=\dfrac{\text{Number of digits representing }}{\text{Total digits}}\\\\\Rightarrow\text{P(success)}=\dfrac{1}{5}=0.2

In percent , 0.2*100=20\%

Hence, the estimated probability of success = 20%

kupik [55]3 years ago
4 0
It's 20%. idk how to do it, but it says 20%
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Check my steps and for part b, the professor wants us to show are work and I don't know how to solve it by hand.
Ugo [173]
Part a is correct.

Part b can be done a couple ways.
1) Use binomial distribution. p = 0.2, n = 144
P(x>3) = 1 - P(x=0) -p(x=1) -p(x=2) -p(x=3)
where
P(x=k) = (nCk)p^k (1-p)^{n-k}

2) Assume a normal distribution with mean = 28.2, stdev = 4.8
z = \frac{4 - 28.2}{4.8} = -5.04
Look up z-value in normal table to find probability.

Hope that helps.
4 0
2 years ago
3) Which ordered pair in the form (x, y) is a solution of this equation?<br> 7x - 5y = 1
Ludmilka [50]
(x,y) = (1, 1.2)
1 = 7(1) - 5(1.2)
1 = 7 - 6

There are many other options though.
3 0
3 years ago
What is the angles mSRW?
Scilla [17]

Answer:

126°

Step-by-step explanation:

(2x +18)° = (3x)°

2x + 18 = 3x

18 = 3x - 2x

18 = x

therefore, (3x)° = (3*18)°= (54)°

m\angle SRW + (3x)\degree = 180\degree \\m\angle SRW + 54\degree  = 180\degree \\m\angle SRW = 180\degree  - 54\degree  \\\huge\red{\boxed{m\angle SRW = 126\degree}}

5 0
3 years ago
Set up a linear system and solve
crimeas [40]

Answer:

1300 and 700 respectively.

Step-by-step explanation:

Let x be invested in first account and y be invested in second account.

ATQ, x+y=2000 and 101=(4)*x/100+7*y/100. Solving it will give us x=1300 and y=700

6 0
2 years ago
Water has a freezing point of 32 degrees. Murcury has a freezing point that is 70 degrees lower. What is the freezing point of m
Mekhanik [1.2K]

Answer:

-38 degrees

Step-by-step explanation:

32-70

= -38

8 0
3 years ago
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