davidgba64

5 Questions
2 Answers

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1120

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Need help (Statistical Studies)

A scientist has a hypothesis that as the number of police cars is increased on a roadway, the proportion of cars speeding decreases. He finds that at police car level X1 (one police car per 100 miles), the proportion of cars speeding is . At police read more ..

davidgba64 Dec 13, 2017

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1580

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The last questions I need... help!

I can't even complete the graph on this one ^
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davidgba64 Dec 7, 2017

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Another short answer question..help please

The following table shows the relationship between students who enroll in advanced Algebra and Chemistry in a particular high school. From a sample of 40 students it is found that 29 are enrolled in Algebra, 11 are enrolled in Chemistry, and five are enrolled read more ..

davidgba64 Dec 7, 2017

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I need help, again....

Two cards are drawn from a standard deck of cards.
Part A: If they are drawn with replacement, what is the probability that both cards are 2s? Show your work.
Part B: If they are drawn without replacement, what is the probability that read more ..

davidgba64 Dec 7, 2017

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1020

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Please help me I'm having so much trouble.

Complete the two-way frequency table below, which shows the relationship between adults' gender and whether these adults buy a truck or a car for their first new vehicle. From a sample of 88 adults, the following data are collected:

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davidgba64 Dec 7, 2017

+24

+1

genius.

davidgba64Dec 7, 2017

+24

+1

Wow... thank you so much

davidgba64Dec 7, 2017