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Vika [28.1K]
3 years ago
14

A class consists of 55% boys and 45% girls. It is observed that 25% of the class are boys and scored an A on the test, and 35% o

f the class are
girls and scored an A on the test.
If a student is chosen at random and is found to be a girl, the probability that the student scored an Ais
Mathematics
1 answer:
Julli [10]3 years ago
7 0

Step-by-step explanation:

Probability of event A on the condition of event B is:

P(A|B) = P(A and B) / P(B)

P(scored an A | girl) = P(scored an A and girl) / P(girl)

P(scored an A | girl) = 0.35 / 0.45

P(scored an A | girl) = 0.778

The probability that a randomly selected girl also scored an A is 77.8%.

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What is the common difference between the elements of the arithmetic sequence below?
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➷ -22.5 - (-18) = -4.5

-27 - (-22.5) = -4.5

The common difference is 4.5

➶Hope This Helps You!

➶Good Luck :)

➶Have A Great Day ^-^

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7 0
3 years ago
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4 0
3 years ago
For what values ​​does c have no solutions?
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cx² = -(x⁴ + 100)

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2 years ago
Maureen measured a house and its lot and made a scale drawing. The scale she used was
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The most appropriate choice for unitary method will be given by-

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What is unitary method?

Unitary method is the method in which value of a single unit can be calculated from the value of a multiple unit and value of a multiple unit can be calculated from the value of a single unit.

Sometimes value of single unit is less than value of multiple unit

For example - cost of food and quantity of food

Sometimes value of single unit is more than value of multiple unit

For example- Number of men and time taken by those men to do a work

Here,

Scale used by Maureen is 1 inch = 8ft

Actual length of house's driveway = 24 feet

8 ft of room is equal to 1 inch on scale

1 ft of room is equal to \frac{1}{8} inch on scale

24 feet of room is equal to \frac{1}{8} \times 24 inch on scale

24 feet of room is equal to 3 inch on scale

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brainly.com/question/24587372

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3 0
1 year ago
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3 years ago
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