3 years ago

Please help!

Mathematics

1 answer:

Musya8 [376]3 years ago

5 0

Answer:

See the attachment please.

Step-by-step explanation:

Statistics!! All work is on the picture, plus the boxed answers.

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Which statement implies that A and B are independent events?

STatiana [176]

Answer:

$P(A \cap B) = P(A)P(B)$

Step-by-step explanation:

Independent events:

If two events, A and B are independent, the probability of both A and B happening is the same as the probability of A happening multiplied by the probability of B happenings, that is:

$P(A \cap B) = P(A)P(B)$

In this question:

The statement is $P(A \cap B) = P(A)P(B)$

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3 years ago

What is the value of x

barxatty [35]

X = 15

X + 90 = 7x

X = 7x - 90

X - 7x = -90

-6x = 90

Divide both sides by -6

X = 15

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3 years ago

Johnny has graded 20% of his 150 students papers how many papers does he still need to finish grading ?

LiRa [457]

The correct answer is 120 papers.

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3 years ago

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Students sold raffle tickets to raise money for a field trip. The first 20 tickets cost $4 each. To sell more tickets, they lowe

saveliy_v [14]

Answer:

88 Tickets were sold

Step-by-step explanation:

20*$4=$80

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3 years ago

as a contractor to make a hole 4 5/8 inches diameter. express the mixed number as an improper fraction.

san4es73 [151]

The mixed number as an improper fraction is 37/8

<h3>How to express the mixed number as an improper fraction?</h3>

The diameter is give as:

Diameter = 4 5/8

Next we convert the above number to an improper fraction

The numerator is calculated as

Numerator = 8 * 4 + 5

This gives

Numerator = 37

Hence, the mixed number as an improper fraction is 37/8