3 years ago

Why do we study patterns in mathematics

Mathematics

1 answer:

Mariulka [41]3 years ago

4 0

Patterns allow someone to make educated guesses.

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Hitman42 [59]

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"In one statistics course, students reported studying an average of 9.92 hours a week, with a standard deviation of 4.54. Treati

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Answer:

66.28% of students study more than 8 hours

Step-by-step explanation:

The percent of students study more than 8 hour can be calculated as

P(X>8)=?

P(X>8)=P((X-mean)/sd>(8-9.92)/4.54)

The calculated z-score is -0.42.

P(X>8)=P(Z>-0.42)

P(X>8)=P(0<Z<-0.42)+P(0<Z<∞)

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3 years ago

A particular Spotify playlist contains 105 songs, of which 10 are by the Beatles. Suppose the shuffle feature is used to play th

katovenus [111]

Answer: The required probability is 0.3296.

Step-by-step explanation:

Since we have given that

Number of songs = 105

Number of songs are by the Beatles = 10

So, Number of songs are not by the Beatles = 105-10=95

So, the probability that the first Beatles song heard is the fifth song played is given by

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Hence, the required probability is 0.3296.

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