The experimental probability that the next person to enter the store will be wearing a jacket is 9/20.
The experimental probability of an event is defined as the ratio of the number of times the event occurs to the total number of trials or observations.
In this case, we have observed 20 people, and 9 of them were wearing jackets. Therefore, the experimental probability that the next person to enter the store will be wearing a jacket is:
P = Number of people wearing jackets / Total number of people observed
P = 9/20
Therefore, the experimental probability that the next person to enter the store will be wearing a jacket is 9/20.
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Homework due tommorrow......PLEASE HELP!!!!!
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A. True
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B. False
The spheres are similar as their radius will be in the ratio
A sphere is symmetrical, round in shape. It is a three dimensional solid, that has all its surface points at equal distances from the center. It has surface area and volume based on its radius. It does not have any faces, corners or edges.
The Surface Area of a Sphere = 4πr²
The Volume of a Sphere = ( 4/3 ) πr³
where r is the radius of the sphere
Given data ,
Let the first sphere be represented as A
Now , the radius of the sphere A = r₁
Let the first sphere be represented as B
Now , the radius of the sphere B = r₂
And , the volume of sphere A , V₁ = ( 4/3 ) πr₁³
The volume of sphere B , V₂ = ( 4/3 ) πr₂³
The ratio of V₁ / V₂ is given by
V₁ / V₂ = ( 4/3 ) πr₁³ / ( 4/3 ) πr₂³
On simplifying , we get
V₁ / V₂ = r₁³ / r₂³
So , the spheres are similar by their ratio of radius
Hence , all the spheres are similar in ratios
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Answer:
True
Step-by-step explanation: