Some of the children at a school arrive by car.30% of the children at the school are boys
60% of the boys at the school arrive by car
80% of the girls at the school arrive by car
what is the probability that a child chosen at random from the school arrives by car? give your answer as a decimal
Answers
Answer:
- 74%
Explanation:
You can build a two-way relative frequency table to represent the data:
These are the columns and rows:
Car No car Total
Boys
Girl
Total
Fill the table
- 30% of the children at the school are boys
Car No car Total
Boys 30%
Girl
Total
- 60% of the boys at the school arrive by car
That is 60% of 30% = 0.6 × 30% = 18%
Car No car Total
Boys 18% 30%
Girls
Total
By difference you can fill the cell of Boy and No car: 30% - 18% = 12%
Car No car Total
Boy 18% 12% 30%
Girl
Total
Also, you know that the grand total is 100%
Car No car Total
Boy 18% 12% 30%
Girl
Total 100%
By difference you fill the total of Girls: 100% - 30% = 70%
Car No car Total
Boy 18% 12% 30%
Girl 70%
Total 100%
- 80% of the girls at the school arrive by car
That is 80% of 70% = 0.8 × 70% = 56%
Car No car Total
Boy 18% 12% 30%
Girl 56% 70%
Total 100%
Now you can finish filling in the whole table calculating the differences:
Car No car Total
Boy 18% 12% 30%
Girl 56% 14% 70%
Total 74% 26% 100%
Having the table completed you can find any relevant probability.
The probability that a child chosen at random from the school arrives by car is the total of the column Car: 74%.
That is because that column represents the percent of boys and girls that that arrive by car: 18% of the boys, 56% of the girls, and 74% of all the the children.
Answer: 0.74
Step-by-step explanation:
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Answers
Answer:
He makes $15,000
Step-by-step explanation:
250,000*0.06 or 6%= 15,000
Answers
What it's divisible by
2x 4 is divisible but not 9
3x none are divisible by three
4x only 4
And you only go up to the numerator there for 4/9 is in simplest form
3+7=??
4+5=??
5+8=??
6+7=??
7+8=??
Answers
3 + 7 = 10
4 + 5 = 9
5 + 8 = 13
6 + 7 = 13
7 + 8 = 15
Answers
would be ur answer
A) 1 to 100
B) 0 and 10
C) 0 and 1
that expresses the likelihood that an event ______ occur.
A) Can
B) Cannot
Answers
For a chance event to occur, the probability of that event will be between A. 1 to 100.
This probability is a measure of the likelihood that the event A. Can occur.
What is the probability of a chance event?
A chance event is an event that has a certain probability of occurring. This probability will be between 1% and 100% depending on the likelihood of the event occuring.
If there exists a probability between 1% and 100% then it means that the event has a likelihood of occuring. If it didn't have such a likelihood, the probability would be 0.
Find out more on probability at brainly.com/question/743546.
Answer:
0-1
can
Step-by-step explanation: I took the test
Answers
The equivalent fraction of given fraction is .
Given fraction is,
It is observed that both numerator and denominator of given fraction is divisible by 4.
Simplest form of is,
Equivalent fraction that has a denominator of 32 is,
Learn more:
8/32 is the answer to your problem