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3 years ago

5

A density curve for all the possible temperatures between 0 degrees F and 40 degrees F is a rectangle. What is the height of the

rectangle in this density curve?
A. 0.025
B. 0.00025
C. 0.0025
D. 0.25

2 answers:

Yuki888 [10]3 years ago

8 0

Answer:

0.25

Step-by-step explanation:

took quiz :)

Eddi Din [679]3 years ago

3 0

Answer:

Concept: Higher Level Mathematics

You have a density curve, aka probability
You are asked to find the height
Hence 0-40F has 40 total integers or values of X(probability)
Hence you have a total Area of
$\binom{40}{0}$
Integrate f(x) to get 0.025.
Hence the answer is A
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Step-by-step explanation:

1) Data given and notation

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$X_{W}=8$ represent the number of women that said they enjoyed the activity of Saturday afternoon shopping

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$n_{W}=23$ sample of demale selected

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Alternative hypothesis: $p_{M} > p_{W}$

We need to apply a z test to compare proportions, and the statistic is given by:

$z=\frac{p_{M}-p_{W}}{\sqrt{\hat p (1-\hat p)(\frac{1}{n_{M}}+\frac{1}{n_{W}})}}$ (1)

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