Question

ONE HUNDRED POINT GIVE AWAY!!!!
Just answer THIS question "CORRECTLY" to get 100 points, and you will get marked brainliest for the FIRST correct answer...

Answer the questions in the screenshot attached below!!!!

Answer 1

Introduction- Probability

The main concept of these questions is probability. With probability, we can expect the number of cases happening occasionally.

The formula for the probability is,

$\mathrm{Probability=\dfrac{Favorable\ Cases}{Total\ Cases} }$

If we know the probability and total cases, reversely, we can find the number of favorable cases. If we multiply $\mathrm{Probability}$ and $\mathrm{Total\ Cases}$ that is the $\mathrm{Favourable\ Cases}$.

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Solutions

Sol.- Q.1

11 out of 15 students are in favor of having a photo booth. The probability that a student is in favor is $\dfrac{11}{15}$.

If there are a total of 300 students, the number of students in favor is likely to be,

$\rightarrow\dfrac{11}{15} \times 300=\boxed{220}$

So, in the blank will come 220.

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Sol.- Q.2

13 out of 20 students prefer pepperoni; The probability for a student to prefer pepperoni pizza is $\dfrac{13}{20}$.

If there are a total of 400 students, the number of students that prefer pepperoni is likely to be,

$\rightarrow \dfrac{13}{20} \times 400=\boxed{260}$

So, in the blank will come 260.

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Sol.- Q.3

Assuming there are no abstention or neutrality, the probability that a person goes against is $\dfrac{3}{5}$.

If there are a total of 3,500 people, the number of votes that are against is likely,

$\rightarrow \dfrac{3}{5} \times 3500=\boxed{2100}$

So, in the blank will come 2100.

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Sol.- Q.4

If 129 out of 300 students wanted mediums, the probability that a person wants mediums is $\dfrac{129}{300}$.

If there are a total of 12,000 students, the number of students wanting mediums is likely,

$\rightarrow \dfrac{129}{300} \times 12000=\boxed{5160}$

So, in the blank will come 5160.

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Thank you. I hope you understood!

Answer 2

Answer:

Solution :-

1]

We know that

Probability = Favourable Outcome/Total no. of outcomes

Probability of total students in favour = 11/15 × 300 = 11 × 20 = 220

2]

Number of students who liked pepperonis = 13/20 × 400 = 13 × 20 = 260

3]

Probability of build new high school = ⅖ × 3500 = 2 × 700 = 1400

4]

Total students that want medium t-shirt = 129/300 × 12000 = 129 × 40 = 5160