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Alex
3 years ago
13

Which scatterplot has a correlation coefficient closest to r = –1?

Mathematics
2 answers:
UNO [17]3 years ago
5 0

A coefficient of r = -1 is a negative so the dots would move downward as they move to the right ( higher dots are on the left side, lower dots on the right side. As the coefficient gets closer to -1 the dots form more of a straight line then being scattered across the graph.

The last graph, which is marked with the blue dot is the correct one.

Igoryamba3 years ago
4 0

Answer:

its D this person was right <3

Step-by-step explanation:

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P(\text{Pizza}\ |\ \text{Female})=0.225

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The two-way frequency table is attached below.

We have to calculate the probability of, a person chosen at random prefers pizza given that they are female, i.e P(\text{Pizza}\ |\ \text{female})

This is a conditional probability.

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P(A\ |\ B)=\dfrac{P(A\ \cap\ B)}{P(B)}

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P(\text{Pizza}\ |\ \text{Female})=\dfrac{P(\text{Pizza}\ \cap\ \text{Female)}}{P({\text{Female}})}

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P(\text{Pizza}\ |\ \text{Female})=\dfrac{P(\text{Pizza}\ \cap\ \text{Female)}}{P({\text{Female}})}=\dfrac{\frac{119}{1000}}{\frac{530}{1000}}=0.225

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3 years ago
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