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qaws [65]
3 years ago
12

A coin is flipped 18 times and it comes up tails 12 times. What is the experimental probability of the coin's comping up tails

Mathematics
2 answers:
antoniya [11.8K]3 years ago
3 0
To find experimental probability you divide the number of time the event occurs by the number of trials. in this case the experimental probability is 2/3
Aleksandr-060686 [28]3 years ago
3 0
18-12=16
16:12
4:3 years
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Approximately 18% of the population of California is 70 years or older. In a random sample of 4, what is the provability for 3 o
Semmy [17]

Answer:

The correct response will be "0.01913".

Step-by-step explanation:

According to the question,

p - P(70 years or older)

= 0.18

n = 4

X = no. of individuals who are older than 70 years

Now,

∴ P(X=r)=n_C_r \ p^r(1-p)^{n-r}

∴ P(X=3)=4_C_3(0.18)^3(1-0.18)^{4-3}

                   =4\times (0.18)^3(0.82)^1

                   =0.01913

 

8 0
3 years ago
Can someone plz help this is like my 5th time putting up this question!!!
serg [7]

Answer:

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3 0
3 years ago
3. Write an equation parallel to the line y = 2x – 2 which goes through (0,3)
solmaris [256]

Answer:

Ok y= 2x + b

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Step-by-step explanation:

parallel lines in slope-intercept form have the same slope, i.e. the same 'm' value or coefficient of <em>x</em><em> </em> but different interceptions

4 0
3 years ago
Construct a parallelogram ABCD such that AB=9 Cm, BC=6cm and ABC=115 degress.
kkurt [141]
1.BD=AC
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3 0
3 years ago
Read 2 more answers
A 20-foot ladder leans up against the side of a building so that the foot of the ladder is 10 feet from the base of the building
harina [27]

Answer:

17.3

Step-by-step explanation:

To solve this equation, you need to use the pythagorean theorem which is:

a^{2} +b^{2}= c^{2}

a= length

b= height

c= hypotenuse

First, substitute in your values for the equation:

10^2+b^{2} =20^{2}

Then, use the squares in the equation:

100+b^{2} =400

Then, subtract 100 from both sides to isolate b:

b^{2} =300

Finally, square root both sides to get your answer:

b=17.3205080757

Then round to the nearest tenth which gives you 17.3.

6 0
3 years ago
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