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hoa [83]
3 years ago
14

A small ferryboat transports vehicles from one island to another, and the order the vehicles arrive will lead to slightly differ

ent placement on the ferry. Consider the chance experiment where the type of vehicle -- passenger (P) or recreational (R) vehicle -- is recorded for each of the next two vehicles that arrive at the dock.
Required:
a. List all the events in the sample space.
b. Display the sample space in the form of a tree diagram
Mathematics
1 answer:
katen-ka-za [31]3 years ago
5 0

Answer:

{PP, PR, RP, RR}

Step-by-step explanation:

Given that:

Passenger vehicle = P

Recreational vehicle = R

For each of the next two vehicles :

Sample space :

_____ P ______ R

P ___ PP _____ PR

R ___ RP _____ RR

{PP, PR, RP, RR}

B.) Tree diagram can be found in attached picture

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Alex787 [66]

Answer:

Step-by-step explanation:

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3 0
3 years ago
Noah gathered data at his school among 7th and 8th graders to see if there was an association between grade level and handedness
mash [69]

Answer: 4) 157

Step-by-step explanation:

We know that there is no association between the grade level and the andedness, then we should find that the ratio between left handeds and right handed is the same for both grades.

In 7-th grade we have:

Left handed : 11

Right handed: 72

The ratio is 11/72 = 0.14

Then, the ratio for the 8-th graders must be about the same:

Left handed: 24

Right handed: X

Ratio: 24/X

Let's start with the bigger option, X = 157.

24/157 = 0.15

Ok, we now see that with the bigger option we obtained almost the same ratio (if we use the smaller values for X, we will get a ratio bigger than 0.15, so 0.15 is the better aproximation that we can find to the 0.14 of the 7-th graders)

Then the correct option is 4) 157

4 0
3 years ago
Please explain this to me.
Nutka1998 [239]

Answer:

  • The value of x is 12 units.

Step-by-step explanation:

<u>We know that:</u>

  • Formula: h² = a² + b²

<u>Let's solve using Pythagoras theorem.</u>

  • => 13² = 5² + x²
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  • => 169 - 25 = x²
  • => 144 = x²
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Hence, the value of x is 12 units.

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Step-by-step explanation:

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