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zhannawk [14.2K]
2 years ago
9

384 of the 403 people on a plane are passengers.

Mathematics
1 answer:
Artist 52 [7]2 years ago
6 0

19/403 of the people on the plane are crew

<h3>How to determine the crew fraction?</h3>

The given parameters are:

Population = 403

Passengers = 384

The number of crew is calculated using:

Crew = 403 - 384

Evaluate

Crew = 19

The fraction of crew is then calculated using:

Fraction = Crew/Population

This gives

Fraction = 19/403

Hence, 19/403 of the people on the plane are crew

Read more about fractions at:

brainly.com/question/11562149

#SPJ1

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3 years ago
For a sample of eight​ bears, researchers measured the distances around the​ bears' chests and weighed the bears. Minitab was us
Yakvenalex [24]

Answer:

There is a linear correlation between the chest size and weight

Proportion of the variation in weight can be explained by the linear relationship between weight and chest​ size is 0.006724 .

Step-by-step explanation:

Null Hypothesis: H_0= There is no linear correlation between the chest size and weight

Alternative Hypothesis : H_a=There is a linear correlation between the chest size and weight

The value of the linear correlation coefficient is r=0.882.

n = 8

Formula : t=\frac{r\sqrt{n-2}}{\sqrt{1-r^2}}

t=\frac{0.882\sqrt{8-2}}{\sqrt{1-(0.882)^2}}

t=4.584

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α =0.05

so, p value is 2.365

t calculated > t critical

So, we reject the null hypothesis

So, There is a linear correlation between the chest size and weight

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Hence proportion of the variation in weight can be explained by the linear relationship between weight and chest​ size is 0.006724 and There is a linear correlation between the chest size and weight

4 0
3 years ago
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